diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/PackageSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/PackageSpec.scala
index 44550dc3..9b88d755 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/PackageSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/PackageSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli
 
-object PackageSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object PackageSpec extends org.specs2.mutable.Specification {
 	"OptionMap apply()" should {
 		"return populated Map with single valid double dashed option" in {
 			val opts = OptionMap("--help")
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonealgorithmSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonealgorithmSpec.scala
index 1b22943d..7c5a5137 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonealgorithmSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonealgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object metaphonealgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object metaphonealgorithmSpec extends org.specs2.mutable.Specification {
 	"metaphonealgorithm main()" should {
 		"print phonetic representation with valid dashless argument" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonemetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonemetricSpec.scala
index 51240687..28c27987 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonemetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/metaphonemetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object metaphonemetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object metaphonemetricSpec extends org.specs2.mutable.Specification {
 	"metaphonemetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiisalgorithmSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiisalgorithmSpec.scala
index a331ba11..70c84c88 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiisalgorithmSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiisalgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object nysiisalgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object nysiisalgorithmSpec extends org.specs2.mutable.Specification {
 	"nysiisalgorithm main()" should {
 		"print phonetic representation with valid dashless argument" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiismetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiismetricSpec.scala
index aaeb4311..b3ffa090 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiismetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/nysiismetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object nysiismetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object nysiismetricSpec extends org.specs2.mutable.Specification {
 	"nysiismetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiisalgorithmSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiisalgorithmSpec.scala
index 9fd65047..cbc23df4 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiisalgorithmSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiisalgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object refinednysiisalgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object refinednysiisalgorithmSpec extends org.specs2.mutable.Specification {
 	"refinednysiisalgorithm main()" should {
 		"print phonetic representation with valid dashless argument" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiismetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiismetricSpec.scala
index 7a82f5e5..3f069596 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiismetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinednysiismetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object refinednysiismetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object refinednysiismetricSpec extends org.specs2.mutable.Specification {
 	"refinednysiismetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexalgorithmSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexalgorithmSpec.scala
index 051499bc..4250f084 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexalgorithmSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexalgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object refinedsoundexalgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object refinedsoundexalgorithmSpec extends org.specs2.mutable.Specification {
 	"refinedsoundexalgorithm main()" should {
 		"print phonetic representation with valid dashless argument" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexmetricSpec.scala
index e7c6d2d2..98941237 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/refinedsoundexmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object refinedsoundexmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object refinedsoundexmetricSpec extends org.specs2.mutable.Specification {
 	"refinedsoundexmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexalgorithmSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexalgorithmSpec.scala
index 13151d33..8be9b64d 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexalgorithmSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexalgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object soundexalgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object soundexalgorithmSpec extends org.specs2.mutable.Specification {
 	"soundexalgorithm main()" should {
 		"print phonetic representation with valid dashless argument" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexmetricSpec.scala
index 433bb978..93562635 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/phonetic/soundexmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.phonetic
 
-object soundexmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object soundexmetricSpec extends org.specs2.mutable.Specification {
 	"soundexmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/dicesorensenmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/dicesorensenmetricSpec.scala
index 5e0fce26..8ce5b143 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/dicesorensenmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/dicesorensenmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object dicesorensenmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object dicesorensenmetricSpec extends org.specs2.mutable.Specification {
 	"dicesorensenmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/hammingmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/hammingmetricSpec.scala
index 0f33097b..465555bf 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/hammingmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/hammingmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object hammingmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object hammingmetricSpec extends org.specs2.mutable.Specification {
 	"hammingmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jaccardmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jaccardmetricSpec.scala
index 41bd3903..e9af8e04 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jaccardmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jaccardmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object jaccardmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object jaccardmetricSpec extends org.specs2.mutable.Specification {
 	"jaccardmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarometricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarometricSpec.scala
index 6afdf704..2707e770 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarometricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarometricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object jarometricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object jarometricSpec extends org.specs2.mutable.Specification {
 	"jarometric main()" should {
 		"print the distance with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarowinklermetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarowinklermetricSpec.scala
index d064e0cd..bc541e84 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarowinklermetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/jarowinklermetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object jarowinklermetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object jarowinklermetricSpec extends org.specs2.mutable.Specification {
 	"jarowinklermetric main()" should {
 		"print the distance with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/levenshteinmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/levenshteinmetricSpec.scala
index f09ad700..34ea6a9f 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/levenshteinmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/levenshteinmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object levenshteinmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object levenshteinmetricSpec extends org.specs2.mutable.Specification {
 	"levenshteinmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ngrammetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ngrammetricSpec.scala
index 85966135..9d924d29 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ngrammetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ngrammetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object ngrammetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object ngrammetricSpec extends org.specs2.mutable.Specification {
 	"ngrammetric main()" should {
 		"print if they are a match with valid dashless arguments and valid n argument" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/overlapmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/overlapmetricSpec.scala
index 31e88a95..bb48d13d 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/overlapmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/overlapmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object overlapmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object overlapmetricSpec extends org.specs2.mutable.Specification {
 	"overlapmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ratcliffobershelpmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ratcliffobershelpmetricSpec.scala
index ab0243fd..40085c4c 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ratcliffobershelpmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/ratcliffobershelpmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object ratcliffobershelpmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object ratcliffobershelpmetricSpec extends org.specs2.mutable.Specification {
 	"ratcliffobershelpmetric main()" should {
 		"print if they are a match with valid dashless arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/weightedlevenshteinmetricSpec.scala b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/weightedlevenshteinmetricSpec.scala
index 6fa90949..4cc8fc39 100755
--- a/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/weightedlevenshteinmetricSpec.scala
+++ b/cli/src/test/scala/com/rockymadden/stringmetric/cli/similarity/weightedlevenshteinmetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.cli.similarity
 
-object weightedlevenshteinmetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object weightedlevenshteinmetricSpec extends org.specs2.mutable.Specification {
 	"weightedlevenshteinmetric main()" should {
 		"print if they are a match with valid dashless arguments and valid weight arguments" in {
 			val out = new java.io.ByteArrayOutputStream()
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/AlphabetSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/AlphabetSpec.scala
index 0145aeaf..4007e588 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/AlphabetSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/AlphabetSpec.scala
@@ -2,7 +2,8 @@ package com.rockymadden.stringmetric
 
 import com.rockymadden.stringmetric.Alphabet._
 
-object AlphabetSpec extends org.specs2.mutable.SpecificationWithJUnit {
+
+object AlphabetSpec extends org.specs2.mutable.Specification {
 	"AlphabetSet isSuperset()" should {
 		"return false with non-alphabet argument" in {
 			Alpha isSuperset '0' must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/StringAlgorithmSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/StringAlgorithmSpec.scala
index 6366685e..910790bf 100644
--- a/core/src/test/scala/com/rockymadden/stringmetric/StringAlgorithmSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/StringAlgorithmSpec.scala
@@ -3,7 +3,7 @@ package com.rockymadden.stringmetric
 import com.rockymadden.stringmetric.phonetic._
 import com.rockymadden.stringmetric.transform._
 
-object StringAlgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object StringAlgorithmSpec extends org.specs2.mutable.Specification {
 	"StringAlgorithm convenience methods" should {
 		"pass through" in {
 			StringAlgorithm.computeWithMetaphone("testone").get must
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/StringMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/StringMetricSpec.scala
index fbdc5364..2f3d872b 100644
--- a/core/src/test/scala/com/rockymadden/stringmetric/StringMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/StringMetricSpec.scala
@@ -4,7 +4,7 @@ import com.rockymadden.stringmetric.phonetic._
 import com.rockymadden.stringmetric.similarity._
 import com.rockymadden.stringmetric.transform._
 
-object StringMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object StringMetricSpec extends org.specs2.mutable.Specification {
 	"StringMetric convenience methods" should {
 		"pass through" in {
 			StringMetric.compareWithDiceSorensen(1)("testone", "testtwo").get must
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/StringTokenizerSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/StringTokenizerSpec.scala
index 0a994b73..c66d45d8 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/StringTokenizerSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/StringTokenizerSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric
 
-object StringTokenizerSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object StringTokenizerSpec extends org.specs2.mutable.Specification {
 	"NGramTokenizer tokenize()" should {
 		"return None with empty argument" in {
 			NGramTokenizer(1).tokenize("").isDefined must beEqualTo(false)
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneAlgorithmSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneAlgorithmSpec.scala
index 5b9f0784..3b6dae30 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneAlgorithmSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneAlgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object MetaphoneAlgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object MetaphoneAlgorithmSpec extends org.specs2.mutable.Specification {
 	"MetaphoneAlgorithm compute()" should {
 		"return None with empty argument" in {
 			MetaphoneAlgorithm.compute("").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetricSpec.scala
index aae4cbcc..82b3feaa 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/MetaphoneMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object MetaphoneMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object MetaphoneMetricSpec extends org.specs2.mutable.Specification {
 	"MetaphoneMetric compare()" should {
 		"return None with empty arguments" in {
 			MetaphoneMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisAlgorithmSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisAlgorithmSpec.scala
index 7cb37084..3c79fff5 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisAlgorithmSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisAlgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object NysiisAlgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object NysiisAlgorithmSpec extends org.specs2.mutable.Specification {
 	"NysiisAlgorithm compute()" should {
 		"return None with empty argument" in {
 			NysiisAlgorithm.compute("").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisMetricSpec.scala
index d65165b3..29e2b366 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/NysiisMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object NysiisMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object NysiisMetricSpec extends org.specs2.mutable.Specification {
 	"NysiisMetric compare()" should {
 		"return None with empty arguments" in {
 			NysiisMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisAlgorithmSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisAlgorithmSpec.scala
index 5b0f46dd..4d3fb013 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisAlgorithmSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisAlgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object RefinedNysiisAlgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object RefinedNysiisAlgorithmSpec extends org.specs2.mutable.Specification {
 	"RefinedNysiisAlgorithm compute()" should {
 		"return None with empty argument" in {
 			RefinedNysiisAlgorithm.compute("").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisMetricSpec.scala
index 285d8790..bd546a8f 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedNysiisMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object RefinedNysiisMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object RefinedNysiisMetricSpec extends org.specs2.mutable.Specification {
 	"RefinedNysiisMetric compare()" should {
 		"return None with empty arguments" in {
 			RefinedNysiisMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexAlgorithmSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexAlgorithmSpec.scala
index ff756fa4..94bc6456 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexAlgorithmSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexAlgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object RefinedSoundexAlgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object RefinedSoundexAlgorithmSpec extends org.specs2.mutable.Specification {
 	"compute method" should {
 		"return None with empty argument" in {
 			RefinedSoundexAlgorithm.compute("").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexMetricSpec.scala
index 82ff3fa0..634bb400 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/RefinedSoundexMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object RefinedSoundexMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object RefinedSoundexMetricSpec extends org.specs2.mutable.Specification {
 	"RefinedSoundexMetric compare()" should {
 		"return None with empty arguments" in {
 			RefinedSoundexMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexAlgorithmSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexAlgorithmSpec.scala
index c167f63c..84a44556 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexAlgorithmSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexAlgorithmSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object SoundexAlgorithmSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object SoundexAlgorithmSpec extends org.specs2.mutable.Specification {
 	"SoundexAlgorithm compute()" should {
 		"return None with empty argument" in {
 			SoundexAlgorithm.compute("").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexMetricSpec.scala
index 449091d2..00c8589e 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/phonetic/SoundexMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.phonetic
 
-object SoundexMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object SoundexMetricSpec extends org.specs2.mutable.Specification {
 	"SoundexMetric compare()" should {
 		"return None with empty arguments" in {
 			SoundexMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/DiceSorensenMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/DiceSorensenMetricSpec.scala
index 4912e9ec..b329ace9 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/DiceSorensenMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/DiceSorensenMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object DiceSorensenMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object DiceSorensenMetricSpec extends org.specs2.mutable.Specification {
 	"DiceSorensenMetric compare()" should {
 		"return None with empty arguments" in {
 			DiceSorensenMetric(1).compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/HammingMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/HammingMetricSpec.scala
index b2831bc2..8f84921b 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/HammingMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/HammingMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object HammingMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object HammingMetricSpec extends org.specs2.mutable.Specification {
 	"HammingMetric compare()" should {
 		"return None with empty arguments" in {
 			HammingMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaccardMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaccardMetricSpec.scala
index 145a1e90..c250b445 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaccardMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaccardMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object JaccardMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object JaccardMetricSpec extends org.specs2.mutable.Specification {
 	"JaccardMetric compare()" should {
 		"return None with empty arguments" in {
 			JaccardMetric(1).compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroMetricSpec.scala
index c4450331..4088c805 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object JaroMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object JaroMetricSpec extends org.specs2.mutable.Specification {
 	"JaroMetric compare()" should {
 		"return None with empty arguments" in {
 			JaroMetric.compare("", "").isDefined should beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroWinklerMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroWinklerMetricSpec.scala
index 79a4df05..cd511bc8 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroWinklerMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/JaroWinklerMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object JaroWinklerMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object JaroWinklerMetricSpec extends org.specs2.mutable.Specification {
 	"JaroWinklerMetric compare()" should {
 		"return None with empty arguments" in {
 			JaroWinklerMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/LevenshteinMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/LevenshteinMetricSpec.scala
index 111d75ff..b4d0622e 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/LevenshteinMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/LevenshteinMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object LevenshteinMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object LevenshteinMetricSpec extends org.specs2.mutable.Specification {
 	"LevenshteinMetric compare()" should {
 		"return None with empty arguments" in {
 			LevenshteinMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/NGramMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/NGramMetricSpec.scala
index 501a331b..33ce91e4 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/NGramMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/NGramMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object NGramMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object NGramMetricSpec extends org.specs2.mutable.Specification {
 	"NGramMetric compare()" should {
 		"return None with empty arguments" in {
 			NGramMetric(1).compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala
index ba505920..0fac0827 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object OverlapMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object OverlapMetricSpec extends org.specs2.mutable.Specification {
 	"OverlapMetric compare()" should {
 		"return None with empty arguments" in {
 			OverlapMetric(1).compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/RatcliffObershelpMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/RatcliffObershelpMetricSpec.scala
index 61394ea8..d8b1b89b 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/RatcliffObershelpMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/RatcliffObershelpMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object RatcliffObershelpMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object RatcliffObershelpMetricSpec extends org.specs2.mutable.Specification {
 	"RatcliffObershelpMetric compare()" should {
 		"return None with empty arguments" in {
 			RatcliffObershelpMetric.compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/similarity/WeightedLevenshteinMetricSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/similarity/WeightedLevenshteinMetricSpec.scala
index 53c12541..4228eabd 100755
--- a/core/src/test/scala/com/rockymadden/stringmetric/similarity/WeightedLevenshteinMetricSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/similarity/WeightedLevenshteinMetricSpec.scala
@@ -1,6 +1,6 @@
 package com.rockymadden.stringmetric.similarity
 
-object WeightedLevenshteinMetricSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object WeightedLevenshteinMetricSpec extends org.specs2.mutable.Specification {
 	"WeightedLevenshteinMetric compare()" should {
 		"return None with empty arguments" in {
 			WeightedLevenshteinMetric(10, 0.1, 1).compare("", "").isDefined must beFalse
diff --git a/core/src/test/scala/com/rockymadden/stringmetric/transformSpec.scala b/core/src/test/scala/com/rockymadden/stringmetric/transformSpec.scala
index 01fa3a33..bf2c2de9 100644
--- a/core/src/test/scala/com/rockymadden/stringmetric/transformSpec.scala
+++ b/core/src/test/scala/com/rockymadden/stringmetric/transformSpec.scala
@@ -2,7 +2,7 @@ package com.rockymadden.stringmetric
 
 import com.rockymadden.stringmetric.transform._
 
-object transformSpec extends org.specs2.mutable.SpecificationWithJUnit {
+object transformSpec extends org.specs2.mutable.Specification {
 	"filterAlpha()" should {
 		"return transformed" in {
 			filterAlpha(
diff --git a/project/build.properties b/project/build.properties
index 37b489cb..27e88aa1 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.1
+sbt.version=0.13.13
diff --git a/project/build.scala b/project/build.scala
index e13649b7..ea3f4ad1 100644
--- a/project/build.scala
+++ b/project/build.scala
@@ -4,7 +4,7 @@ import Keys._
 object CoreBuild extends Build {
 	lazy val root = Project("stringmetric", file("."),
 		settings = Defaults.defaultSettings ++ Seq(
-			credentials += Credentials(Path.userHome / ".ivy2" / ".credentials"),
+			//credentials += Credentials(Path.userHome / ".ivy2" / ".credentials"),
 			name := "stringmetric",
 			organization := "com.rockymadden.stringmetric",
 			pomExtra :=
@@ -29,23 +29,25 @@ object CoreBuild extends Build {
 			publishMavenStyle := true,
 			publishTo := Some("Sonatype" at "https://oss.sonatype.org/service/local/staging/deploy/maven2"),
 			resolvers ++= Seq(DefaultMavenRepository),
-			scalaVersion := "2.11.1",
-			crossScalaVersions := Seq("2.11.1", "2.10.4"),
+			scalaVersion := "2.12.3",
+			crossScalaVersions := Seq("2.12.3", "2.11.11", "2.10.6"),
 			crossVersion := CrossVersion.binary,
-			version := "0.27.4"
+			version := "0.27.5"
 		)
 	).aggregate(core, cli)
 
+	private val specs2Version = "3.9.4"
+
 	lazy val core: Project = Project("core", file("core"),
 		settings = (root.settings: Seq[sbt.Def.Setting[_]]) ++ Seq(
-			libraryDependencies ++= Seq("org.specs2" %% "specs2" % "2.3.12" % "test"),
+			libraryDependencies ++= Seq("org.specs2" %% "specs2-core" % specs2Version % "test"),
 			name := "stringmetric-core"
 		)
 	)
 
 	lazy val cli: Project = Project("cli", file("cli"),
 		settings = (root.settings: Seq[sbt.Def.Setting[_]]) ++ Seq(
-			libraryDependencies ++= Seq("org.specs2" %% "specs2" % "2.3.12" % "test"),
+			libraryDependencies ++= Seq("org.specs2" %% "specs2-core" % specs2Version % "test"),
 			name := "stringmetric-cli"
 		)
 	).dependsOn(core)
diff --git a/readme.md b/readme.md
index 9c455744..7918c0b6 100755
--- a/readme.md
+++ b/readme.md
@@ -35,14 +35,14 @@ String metrics and phonetic algorithms for Scala. The library provides facilitie
 
 __SBT:__
 ```scala
-libraryDependencies += "com.rockymadden.stringmetric" %% "stringmetric-core" % "0.27.4"
+libraryDependencies += "com.rockymadden.stringmetric" %% "stringmetric-core" % "0.27.5"
 ```
 
 ---
 
 __Gradle:__
 ```groovy
-compile 'com.rockymadden.stringmetric:stringmetric-core_2.10:0.27.4'
+compile 'com.rockymadden.stringmetric:stringmetric-core_2.12:0.27.5'
 ```
 
 ---
@@ -51,7 +51,7 @@ __Maven:__
 ```xml
 <dependency>
 	<groupId>com.rockymadden.stringmetric</groupId>
-	<artifactId>stringmetric-core_2.10</artifactId>
+	<artifactId>stringmetric-core_2.12</artifactId>
 	<version>0.27.4</version>
 </dependency>
 ```