diff --git a/go.mod b/go.mod
index b8a0fa1..9c69e13 100644
--- a/go.mod
+++ b/go.mod
@@ -3,14 +3,12 @@ module github.com/blinklabs-io/ouroboros-mock
 go 1.21
 
 require (
-	github.com/blinklabs-io/gouroboros v0.85.0
+	github.com/blinklabs-io/gouroboros v0.86.0
 	go.uber.org/goleak v1.3.0
 )
 
 require (
 	filippo.io/edwards25519 v1.1.0 // indirect
-	github.com/cosmos/btcutil v1.0.5 // indirect
-	github.com/cosmos/cosmos-sdk v0.50.6 // indirect
 	github.com/fxamacker/cbor/v2 v2.6.0 // indirect
 	github.com/jinzhu/copier v0.4.0 // indirect
 	github.com/utxorpc/go-codegen v0.5.1 // indirect
diff --git a/go.sum b/go.sum
index 69b26f1..49f36f8 100644
--- a/go.sum
+++ b/go.sum
@@ -1,11 +1,7 @@
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
-github.com/blinklabs-io/gouroboros v0.85.0 h1:KLB7prQpDq3IRIS7Oxl8cz8nABSjU8UoOp0TvBhSyAc=
-github.com/blinklabs-io/gouroboros v0.85.0/go.mod h1:EZe1WcIWfZNESlwHPGLStB6HluXGTkf/ZFUbBi5bCvs=
-github.com/cosmos/btcutil v1.0.5 h1:t+ZFcX77LpKtDBhjucvnOH8C2l2ioGsBNEQ3jef8xFk=
-github.com/cosmos/btcutil v1.0.5/go.mod h1:IyB7iuqZMJlthe2tkIFL33xPyzbFYP0XVdS8P5lUPis=
-github.com/cosmos/cosmos-sdk v0.50.6 h1:efR3MsvMHX5sxS3be+hOobGk87IzlZbSpsI2x/Vw3hk=
-github.com/cosmos/cosmos-sdk v0.50.6/go.mod h1:lVkRY6cdMJ0fG3gp8y4hFrsKZqF4z7y0M2UXFb9Yt40=
+github.com/blinklabs-io/gouroboros v0.86.0 h1:sFlNr5NwekP0qCULZ/XxJB0pWA7lGK1MiTREud3kHVg=
+github.com/blinklabs-io/gouroboros v0.86.0/go.mod h1:fFaFQpbgFiRVGXKxSjuaf2lYnILS9xZVbO1V+Nkr+6Y=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fxamacker/cbor/v2 v2.6.0 h1:sU6J2usfADwWlYDAFhZBQ6TnLFBHxgesMrQfQgk1tWA=