diff --git a/go.mod b/go.mod
index 0eab91e..2621643 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ toolchain go1.24.4
 
 require (
 	github.com/blinklabs-io/cardano-models v0.5.1
-	github.com/blinklabs-io/gouroboros v0.127.0
+	github.com/blinklabs-io/gouroboros v0.128.2
 	github.com/fxamacker/cbor/v2 v2.8.0
 	github.com/gin-contrib/cors v1.7.6
 	github.com/gin-contrib/zap v1.1.5
diff --git a/go.sum b/go.sum
index 81ee4fd..5136103 100644
--- a/go.sum
+++ b/go.sum
@@ -3,8 +3,8 @@ filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/blinklabs-io/cardano-models v0.5.1 h1:dPe5gT8vwmYUbc+rgofO9WS8otbgAKTo5fpMJhLPLIE=
 github.com/blinklabs-io/cardano-models v0.5.1/go.mod h1:8z20pRjrS/0nUO3r0HEKKP3cYstwbyfIWUsYKv+ud3s=
-github.com/blinklabs-io/gouroboros v0.127.0 h1:Zy+ZIMizxjL90WqexO5x0FFW8W7Nla/p45IS56xY/zw=
-github.com/blinklabs-io/gouroboros v0.127.0/go.mod h1:LUGnvJ1iOmpCihNxT9fyZFf6KD5E45sV8ZqEUgljzDw=
+github.com/blinklabs-io/gouroboros v0.128.2 h1:U9XwvTaKxP7OWv2/TkZ5BvSvtsYcnKyCrbaO1hAq1/0=
+github.com/blinklabs-io/gouroboros v0.128.2/go.mod h1:LUGnvJ1iOmpCihNxT9fyZFf6KD5E45sV8ZqEUgljzDw=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
 github.com/btcsuite/btcd v0.22.0-beta.0.20220111032746-97732e52810c/go.mod h1:tjmYdS6MLJ5/s0Fj4DbLgSbDHbEqLJrtnHecBFkdz5M=
 github.com/btcsuite/btcd v0.23.5-0.20231215221805-96c9fd8078fd/go.mod h1:nm3Bko6zh6bWP60UxwoT5LzdGJsQJaPo6HjduXq9p6A=