diff --git a/package.json b/package.json
index ba3c3f8..306410f 100644
--- a/package.json
+++ b/package.json
@@ -36,10 +36,10 @@
     "babel-loader": "^7.1.2",
     "babel-polyfill": "^6.26.0",
     "babel-preset-env": "^1.6.1",
-    "chai": "^3.5.0",
+    "chai": "^4.1.2",
     "codacy-coverage": "^2.0.3",
-    "codeclimate-test-reporter": "^0.4.1",
-    "coveralls": "^2.13.3",
+    "codeclimate-test-reporter": "^0.5.0",
+    "coveralls": "^3.0.0",
     "esdoc": "^1.0.4",
     "esdoc-standard-plugin": "^1.0.0",
     "html-webpack-externals-plugin": "^3.6.0",
diff --git a/test/TestHasher.js b/test/TestHasher.js
index 09e4d62..80d472f 100644
--- a/test/TestHasher.js
+++ b/test/TestHasher.js
@@ -14,7 +14,7 @@ class TestHasher {
   testHash(test) {
     let hash = this.getInstance(test.options);
     hash.update(fromUtf(test.message));
-    assert.equal(toHex(hash.finalize()), test.hash)
+    assert.equal(toHex(hash.finalize()), test.hash);
   }
 
   /**
@@ -47,4 +47,4 @@ class TestHasher {
   }
 }
 
-export default TestHasher
\ No newline at end of file
+export default TestHasher;
\ No newline at end of file
diff --git a/test/TestHmac.js b/test/TestHmac.js
index c77b7ef..3f0904b 100644
--- a/test/TestHmac.js
+++ b/test/TestHmac.js
@@ -15,7 +15,7 @@ class TestHmac {
     let hash = this.getInstance(test.options || {});
     let hmac = new Hmac(test.key, hash);
     hmac.update(test.message);
-    assert.equal(toHex(hmac.finalize()), test.hash)
+    assert.equal(toHex(hmac.finalize()), test.hash);
   }
 
   /**
@@ -27,4 +27,4 @@ class TestHmac {
   }
 }
 
-export default TestHmac
\ No newline at end of file
+export default TestHmac;
\ No newline at end of file
diff --git a/test/encoder/UtfTest.js b/test/encoder/UtfTest.js
index 238f20d..0fd954c 100644
--- a/test/encoder/UtfTest.js
+++ b/test/encoder/UtfTest.js
@@ -11,65 +11,65 @@ class UtfTest {
     describe('Encoder UTF tests', function () {
       /** @test fromUtf */
       it("fromUtf('\\0')", function () {
-        assert.equal(toHex(fromUtf('\0')), '00')
+        assert.equal(toHex(fromUtf('\0')), '00');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\x5c')", function () {
-        assert.equal(toHex(fromUtf('\x5c')), '5c')
+        assert.equal(toHex(fromUtf('\x5c')), '5c');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\x7f')", function () {
-        assert.equal(toHex(fromUtf('\x7f')), '7f')
+        assert.equal(toHex(fromUtf('\x7f')), '7f');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\x80')", function () {
-        assert.equal(toHex(fromUtf('\x80')), 'c280')
+        assert.equal(toHex(fromUtf('\x80')), 'c280');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\u05ca')", function () {
-        assert.equal(toHex(fromUtf('\u05ca')), 'd78a')
+        assert.equal(toHex(fromUtf('\u05ca')), 'd78a');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\u07ff')", function () {
-        assert.equal(toHex(fromUtf('\u07ff')), 'dfbf')
+        assert.equal(toHex(fromUtf('\u07ff')), 'dfbf');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\u0800')", function () {
-        assert.equal(toHex(fromUtf('\u0800')), 'e0a080')
+        assert.equal(toHex(fromUtf('\u0800')), 'e0a080');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\u2c3c')", function () {
-        assert.equal(toHex(fromUtf('\u2c3c')), 'e2b0bc')
+        assert.equal(toHex(fromUtf('\u2c3c')), 'e2b0bc');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\uffff')", function () {
-        assert.equal(toHex(fromUtf('\uffff')), 'efbfbf')
+        assert.equal(toHex(fromUtf('\uffff')), 'efbfbf');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\ud800\\udc00')", function () {
-        assert.equal(toHex(fromUtf('\ud800\udc00')), 'f0908080')
+        assert.equal(toHex(fromUtf('\ud800\udc00')), 'f0908080');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\ud834\\udf06')", function () {
-        assert.equal(toHex(fromUtf('\ud834\udf06')), 'f09d8c86')
+        assert.equal(toHex(fromUtf('\ud834\udf06')), 'f09d8c86');
       });
 
       /** @test fromUtf */
       it("fromUtf('\\udbff\\udfff')", function () {
-        assert.equal(toHex(fromUtf('\udbff\udfff')), 'f48fbfbf')
+        assert.equal(toHex(fromUtf('\udbff\udfff')), 'f48fbfbf');
       });
     });
   }
 }
 
-export default UtfTest
\ No newline at end of file
+export default UtfTest;
\ No newline at end of file
diff --git a/test/hasher/has160Test.js b/test/hasher/has160Test.js
index 9ae57fe..51fa3c7 100644
--- a/test/hasher/has160Test.js
+++ b/test/hasher/has160Test.js
@@ -81,4 +81,4 @@ class Has160Test extends TestHasher {
   }
 }
 
-export default Has160Test
\ No newline at end of file
+export default Has160Test;
\ No newline at end of file
diff --git a/test/hasher/md2Test.js b/test/hasher/md2Test.js
index bfd7620..080fce6 100644
--- a/test/hasher/md2Test.js
+++ b/test/hasher/md2Test.js
@@ -77,4 +77,4 @@ class Md2Test extends TestHasher {
   }
 }
 
-export default Md2Test
\ No newline at end of file
+export default Md2Test;
\ No newline at end of file
diff --git a/test/hasher/md4Test.js b/test/hasher/md4Test.js
index 3890d1b..539912f 100644
--- a/test/hasher/md4Test.js
+++ b/test/hasher/md4Test.js
@@ -76,4 +76,4 @@ class Md4Test extends TestHasher {
   }
 }
 
-export default Md4Test
\ No newline at end of file
+export default Md4Test;
\ No newline at end of file
diff --git a/test/hasher/md5Test.js b/test/hasher/md5Test.js
index e9017a3..465590b 100644
--- a/test/hasher/md5Test.js
+++ b/test/hasher/md5Test.js
@@ -76,4 +76,4 @@ class Md5Test extends TestHasher {
   }
 }
 
-export default Md5Test
\ No newline at end of file
+export default Md5Test;
\ No newline at end of file
diff --git a/test/hasher/ripemd128Test.js b/test/hasher/ripemd128Test.js
index 53a7df0..33a44f2 100644
--- a/test/hasher/ripemd128Test.js
+++ b/test/hasher/ripemd128Test.js
@@ -82,4 +82,4 @@ class Ripemd128Test extends TestHasher {
   }
 }
 
-export default Ripemd128Test
\ No newline at end of file
+export default Ripemd128Test;
\ No newline at end of file
diff --git a/test/hasher/ripemd160Test.js b/test/hasher/ripemd160Test.js
index 7adedc2..913776f 100644
--- a/test/hasher/ripemd160Test.js
+++ b/test/hasher/ripemd160Test.js
@@ -82,4 +82,4 @@ class Ripemd160Test extends TestHasher {
   }
 }
 
-export default Ripemd160Test
\ No newline at end of file
+export default Ripemd160Test;
\ No newline at end of file
diff --git a/test/hasher/ripemd256Test.js b/test/hasher/ripemd256Test.js
index e968e4e..6ab0382 100644
--- a/test/hasher/ripemd256Test.js
+++ b/test/hasher/ripemd256Test.js
@@ -82,4 +82,4 @@ class Ripemd256Test extends TestHasher {
   }
 }
 
-export default Ripemd256Test
\ No newline at end of file
+export default Ripemd256Test;
\ No newline at end of file
diff --git a/test/hasher/ripemd320Test.js b/test/hasher/ripemd320Test.js
index 2dff015..6401da1 100644
--- a/test/hasher/ripemd320Test.js
+++ b/test/hasher/ripemd320Test.js
@@ -82,4 +82,4 @@ class Ripemd320Test extends TestHasher {
   }
 }
 
-export default Ripemd320Test
\ No newline at end of file
+export default Ripemd320Test;
\ No newline at end of file
diff --git a/test/hasher/sha0Test.js b/test/hasher/sha0Test.js
index 7de68e1..fff2fb0 100644
--- a/test/hasher/sha0Test.js
+++ b/test/hasher/sha0Test.js
@@ -82,4 +82,4 @@ class Sha0Test extends TestHasher {
   }
 }
 
-export default Sha0Test
\ No newline at end of file
+export default Sha0Test;
\ No newline at end of file
diff --git a/test/hasher/sha1Test.js b/test/hasher/sha1Test.js
index 8603f48..0eb2167 100644
--- a/test/hasher/sha1Test.js
+++ b/test/hasher/sha1Test.js
@@ -91,4 +91,4 @@ class Sha1Test extends TestHasher {
   }
 }
 
-export default Sha1Test
\ No newline at end of file
+export default Sha1Test;
\ No newline at end of file
diff --git a/test/hasher/sha224Test.js b/test/hasher/sha224Test.js
index bdb146b..e8d44c3 100644
--- a/test/hasher/sha224Test.js
+++ b/test/hasher/sha224Test.js
@@ -61,4 +61,4 @@ class Sha224Test extends TestHasher {
   }
 }
 
-export default Sha224Test
\ No newline at end of file
+export default Sha224Test;
\ No newline at end of file
diff --git a/test/hasher/sha256Test.js b/test/hasher/sha256Test.js
index 2217856..971bb32 100644
--- a/test/hasher/sha256Test.js
+++ b/test/hasher/sha256Test.js
@@ -61,4 +61,4 @@ class Sha256Test extends TestHasher {
   }
 }
 
-export default Sha256Test
\ No newline at end of file
+export default Sha256Test;
\ No newline at end of file
diff --git a/test/hasher/sha384Test.js b/test/hasher/sha384Test.js
index b6fb931..901aade 100644
--- a/test/hasher/sha384Test.js
+++ b/test/hasher/sha384Test.js
@@ -61,4 +61,4 @@ class Sha384Test extends TestHasher {
   }
 }
 
-export default Sha384Test
\ No newline at end of file
+export default Sha384Test;
\ No newline at end of file
diff --git a/test/hasher/sha512Test.js b/test/hasher/sha512Test.js
index 5e9e9e8..7b77ba7 100644
--- a/test/hasher/sha512Test.js
+++ b/test/hasher/sha512Test.js
@@ -61,4 +61,4 @@ class Sha512Test extends TestHasher {
   }
 }
 
-export default Sha512Test
\ No newline at end of file
+export default Sha512Test;
\ No newline at end of file
diff --git a/test/hasher/sha512_224Test.js b/test/hasher/sha512_224Test.js
index 55f1639..50c502b 100644
--- a/test/hasher/sha512_224Test.js
+++ b/test/hasher/sha512_224Test.js
@@ -61,4 +61,4 @@ class Sha512_224Test extends TestHasher {
   }
 }
 
-export default Sha512_224Test
\ No newline at end of file
+export default Sha512_224Test;
\ No newline at end of file
diff --git a/test/hasher/sha512_256Test.js b/test/hasher/sha512_256Test.js
index 3872a35..e731adc 100644
--- a/test/hasher/sha512_256Test.js
+++ b/test/hasher/sha512_256Test.js
@@ -61,4 +61,4 @@ class Sha512_256Test extends TestHasher {
   }
 }
 
-export default Sha512_256Test
\ No newline at end of file
+export default Sha512_256Test;
\ No newline at end of file
diff --git a/test/hasher/snefru128_2Test.js b/test/hasher/snefru128_2Test.js
index 7d0ba0c..f0fa101 100644
--- a/test/hasher/snefru128_2Test.js
+++ b/test/hasher/snefru128_2Test.js
@@ -126,4 +126,4 @@ class Snefru128_2Test extends TestHasher {
   }
 }
 
-export default Snefru128_2Test
\ No newline at end of file
+export default Snefru128_2Test;
\ No newline at end of file
diff --git a/test/hasher/snefru128_8Test.js b/test/hasher/snefru128_8Test.js
index 77352e8..17d4575 100644
--- a/test/hasher/snefru128_8Test.js
+++ b/test/hasher/snefru128_8Test.js
@@ -126,4 +126,4 @@ class Snefru128_8Test extends TestHasher {
   }
 }
 
-export default Snefru128_8Test
\ No newline at end of file
+export default Snefru128_8Test;
\ No newline at end of file
diff --git a/test/hasher/snefru256_4Test.js b/test/hasher/snefru256_4Test.js
index 50ec844..9847d6d 100644
--- a/test/hasher/snefru256_4Test.js
+++ b/test/hasher/snefru256_4Test.js
@@ -126,4 +126,4 @@ class Snefru256_4Test extends TestHasher {
   }
 }
 
-export default Snefru256_4Test
\ No newline at end of file
+export default Snefru256_4Test;
\ No newline at end of file
diff --git a/test/hasher/snefru256_8Test.js b/test/hasher/snefru256_8Test.js
index 9fae49a..79a7399 100644
--- a/test/hasher/snefru256_8Test.js
+++ b/test/hasher/snefru256_8Test.js
@@ -126,4 +126,4 @@ class Snefru256_8Test extends TestHasher {
   }
 }
 
-export default Snefru256_8Test
\ No newline at end of file
+export default Snefru256_8Test;
\ No newline at end of file
diff --git a/test/hasher/whirlpool-0Test.js b/test/hasher/whirlpool-0Test.js
index 2d5a177..7af4cf1 100644
--- a/test/hasher/whirlpool-0Test.js
+++ b/test/hasher/whirlpool-0Test.js
@@ -75,4 +75,4 @@ class Whirlpool0Test extends TestHasher {
   }
 }
 
-export default Whirlpool0Test
\ No newline at end of file
+export default Whirlpool0Test;
\ No newline at end of file
diff --git a/test/hasher/whirlpool-tTest.js b/test/hasher/whirlpool-tTest.js
index d097163..ec8721f 100644
--- a/test/hasher/whirlpool-tTest.js
+++ b/test/hasher/whirlpool-tTest.js
@@ -75,4 +75,4 @@ class WhirlpoolTTest extends TestHasher {
   }
 }
 
-export default WhirlpoolTTest
\ No newline at end of file
+export default WhirlpoolTTest;
\ No newline at end of file
diff --git a/test/hasher/whirlpoolTest.js b/test/hasher/whirlpoolTest.js
index d52dd58..bbb9326 100644
--- a/test/hasher/whirlpoolTest.js
+++ b/test/hasher/whirlpoolTest.js
@@ -75,4 +75,4 @@ class WhirlpoolTest extends TestHasher {
   }
 }
 
-export default WhirlpoolTest
\ No newline at end of file
+export default WhirlpoolTest;
\ No newline at end of file