diff --git a/package.json b/package.json
index 538dd8044..b64098fc0 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
   },
   "dependencies": {
     "bigi": "^1.4.0",
-    "bip66": "^1.0.2",
+    "bip66": "^1.0.8",
     "bs58check": "^1.0.5",
     "create-hash": "^1.1.0",
     "create-hmac": "^1.1.3",
diff --git a/test/bitcoin.core.js b/test/bitcoin.core.js
index cdc3b8e00..27570421e 100644
--- a/test/bitcoin.core.js
+++ b/test/bitcoin.core.js
@@ -243,14 +243,12 @@ describe('Bitcoin-core', function () {
       if (i % 2 !== 0) return
 
       var description = sig_noncanonical[i - 1].slice(0, -1)
-      if (description === 'too long') return // we support non secp256k1 signatures
-
       var buffer = new Buffer(hex, 'hex')
 
       it('throws on ' + description, function () {
         assert.throws(function () {
           bitcoin.ECSignature.parseScriptSignature(buffer)
-        })
+        }, /Expected DER (integer|sequence)|(R|S) value (excessively padded|is negative)|(R|S|DER sequence) length is (zero|too short|too long|invalid)|Invalid hashType/)
       })
     })
   })
diff --git a/test/fixtures/ecsignature.json b/test/fixtures/ecsignature.json
index 6f51590de..363ae72a6 100644
--- a/test/fixtures/ecsignature.json
+++ b/test/fixtures/ecsignature.json
@@ -130,37 +130,33 @@
     ],
     "DER": [
       {
-        "exception": "DER sequence too short",
+        "exception": "DER sequence length is too short",
         "hex": "ffffffffffffff"
       },
       {
-        "exception": "DER sequence too long",
+        "exception": "DER sequence length is too long",
         "hex": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
       },
       {
-        "exception": "Invalid sequence length",
+        "exception": "Expected DER sequence",
+        "hex": "00ffff0400ffffff020400ffffff"
+      },
+      {
+        "exception": "DER sequence length is invalid",
         "hex": "30ff020400ffffff020400ffffff"
       },
       {
-        "exception": "Invalid sequence length",
+        "exception": "DER sequence length is invalid",
         "hex": "300c030400ffffff030400ffffff0000"
       },
       {
-        "exception": "Expected a DER integer",
+        "exception": "Expected DER integer",
         "hex": "300cff0400ffffff020400ffffff"
       },
       {
-        "exception": "Expected a DER integer \\(2\\)",
+        "exception": "Expected DER integer \\(2\\)",
         "hex": "300c020200ffffff020400ffffff"
       },
-      {
-        "exception": "Invalid DER encoding",
-        "hex": "300c0204ddffffff020200ffffff"
-      },
-      {
-        "exception": "Invalid DER encoding \\(2\\)",
-        "hex": "300c020400ffffff02dd00ffffff"
-      },
       {
         "exception": "R length is zero",
         "hex": "30080200020400ffffff"
@@ -169,13 +165,21 @@
         "exception": "S length is zero",
         "hex": "3008020400ffffff0200"
       },
+      {
+        "exception": "R length is too long",
+        "hex": "300c02dd00ffffff020400ffffff"
+      },
+      {
+        "exception": "S length is invalid",
+        "hex": "300c020400ffffff02dd00ffffff"
+      },
       {
         "exception": "R value is negative",
-        "hex": "300c0204ffffffff020400ffffff"
+        "hex": "300c020480000000020400ffffff"
       },
       {
         "exception": "S value is negative",
-        "hex": "300c020400ffffff0204ffffffff"
+        "hex": "300c020400ffffff020480000000"
       },
       {
         "exception": "R value excessively padded",