diff --git a/go.mod b/go.mod
index e005682..2ed5699 100644
--- a/go.mod
+++ b/go.mod
@@ -8,6 +8,5 @@ require (
 	github.com/bitcoinsv/bsvutil v0.0.0-20181216182056-1d77cf353ea9
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/libsv/go-bt v0.0.3
-	github.com/piotrnar/gocoin v0.0.0-20201027184336-0c389d7eb2c0
 	github.com/stretchr/testify v1.6.1
 )
diff --git a/go.sum b/go.sum
index 913a969..8b417ab 100644
--- a/go.sum
+++ b/go.sum
@@ -9,8 +9,6 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/libsv/go-bt v0.0.3 h1:wuyubNlVQ8bay9jJy5JpolvMxoiwSA/u5y+zMnVrDIE=
 github.com/libsv/go-bt v0.0.3/go.mod h1:6/eqZS8F56KztrcUdoYXHFx8ZBr4cg5Hp0jf0cG73J4=
-github.com/piotrnar/gocoin v0.0.0-20201027184336-0c389d7eb2c0 h1:PuqJFsnjEnbgSk7b629KC4jyuWqr5tM09k80ZpyptHY=
-github.com/piotrnar/gocoin v0.0.0-20201027184336-0c389d7eb2c0/go.mod h1:sW6i99ojgdRHcz53PCjyEeoTEDFh9dfP5iiEIiNfcaM=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
diff --git a/verify_test.go b/verify_test.go
index ad60916..3f4ffb9 100644
--- a/verify_test.go
+++ b/verify_test.go
@@ -3,10 +3,8 @@ package bitcoin
 import (
 	"crypto/sha256"
 	"fmt"
-	"strconv"
 	"testing"
 
-	"github.com/piotrnar/gocoin/lib/secp256k1"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -128,109 +126,6 @@ func BenchmarkVerifyMessage(b *testing.B) {
 	}
 }
 
-// TestVerifyMessageSigRecover will test the method recoverSig()
-//
-// From: https://github.com/piotrnar/gocoin/blob/master/lib/secp256k1/sig_test.go
-func TestVerifyMessageSigRecover(t *testing.T) {
-	var vs = [][6]string{
-		{
-			"6028b9e3a31c9e725fcbd7d5d16736aaaafcc9bf157dfb4be62bcbcf0969d488",
-			"036d4a36fa235b8f9f815aa6f5457a607f956a71a035bf0970d8578bf218bb5a",
-			"9cff3da1a4f86caf3683f865232c64992b5ed002af42b321b8d8a48420680487",
-			"0",
-			"56dc5df245955302893d8dda0677cc9865d8011bc678c7803a18b5f6faafec08",
-			"54b5fbdcd8fac6468dac2de88fadce6414f5f3afbb103753e25161bef77705a6",
-		},
-		{
-			"b470e02f834a3aaafa27bd2b49e07269e962a51410f364e9e195c31351a05e50",
-			"560978aed76de9d5d781f87ed2068832ed545f2b21bf040654a2daff694c8b09",
-			"9ce428d58e8e4caf619dc6fc7b2c2c28f0561654d1f80f322c038ad5e67ff8a6",
-			"1",
-			"15b7e7d00f024bffcd2e47524bb7b7d3a6b251e23a3a43191ed7f0a418d9a578",
-			"bf29a25e2d1f32c5afb18b41ae60112723278a8af31275965a6ec1d95334e840",
-		},
-	}
-
-	var sig secp256k1.Signature
-	var pubkey, exp secp256k1.XY
-	var msg secp256k1.Number
-
-	for i := range vs {
-		sig.R.SetHex(vs[i][0])
-		sig.S.SetHex(vs[i][1])
-		msg.SetHex(vs[i][2])
-		rid, _ := strconv.ParseInt(vs[i][3], 10, 32)
-		exp.X.SetHex(vs[i][4])
-		exp.Y.SetHex(vs[i][5])
-
-		success := secp256k1.RecoverPublicKey(sig.R.Bytes(), sig.S.Bytes(), msg.Bytes(), int(rid), &pubkey)
-		assert.Equal(t, true, success)
-		assert.Equal(t, true, exp.X.Equals(&pubkey.X))
-		assert.Equal(t, true, exp.Y.Equals(&pubkey.Y))
-	}
-}
-
-// TestVerifyMessageSigRecoverFailed will test the method recoverSig()
-func TestVerifyMessageSigRecoverFailed(t *testing.T) {
-
-	// Bad signature cases
-	var vs = [][6]string{
-		{
-			"0",
-			"0",
-			"0",
-			"0",
-			"0",
-			"0",
-		},
-		{
-			"000",
-			"560978aed76de9d5d781f87ed2068832ed545f2b21bf040654a2daff694c8b09",
-			"9ce428d58e8e4caf619dc6fc7b2c2c28f0561654d1f80f322c038ad5e67ff8a6",
-			"1",
-			"000",
-			"bf29a25e2d1f32c5afb18b41ae60112723278a8af31275965a6ec1d95334e840",
-		},
-		{
-			"000",
-			"1234567",
-			"1234567",
-			"1",
-			"000",
-			"1234567",
-		},
-		{
-			"bf29a25e2d1f32c5afb18b41ae60112723278a8af31275965a6ec1d95334e840",
-			"bf29a25e2d1f32c5afb18b41ae60112723278a8af31275965a6ec1d95334e840",
-			"bf29a25e2d1f32c5afb18b41ae60112723278a8af31275965a6ec1d95334e840",
-			"1",
-			"bf29a25e2d1f32c5afb18b41ae60112723278a8af31275965a6ec1d95334e840",
-			"bf29a25e2d1f32c5afb18b41ae60112723278a8af31275965a6ec1d95334e840",
-		},
-	}
-
-	var sig secp256k1.Signature
-	var pubkey, exp secp256k1.XY
-	var msg secp256k1.Number
-
-	for i := range vs {
-		sig.R.SetHex(vs[i][0])
-		sig.S.SetHex(vs[i][1])
-		msg.SetHex(vs[i][2])
-		rid, err := strconv.ParseInt(vs[i][3], 10, 32)
-		assert.NoError(t, err)
-
-		exp.X.SetHex(vs[i][4])
-		exp.Y.SetHex(vs[i][5])
-
-		assert.Equal(t,
-			false,
-			secp256k1.RecoverPublicKey(sig.R.Bytes(), sig.S.Bytes(), msg.Bytes(), int(rid), &pubkey),
-		)
-	}
-
-}
-
 // TestVerifyMessageDER will test the method VerifyMessageDER()
 func TestVerifyMessageDER(t *testing.T) {