diff --git a/go.mod b/go.mod
index 49e7592..3eedfb3 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.20
 
 require (
 	github.com/blinklabs-io/cardano-models v0.1.0
-	github.com/blinklabs-io/gouroboros v0.66.0
+	github.com/blinklabs-io/gouroboros v0.67.0
 	github.com/fxamacker/cbor/v2 v2.5.0
 	github.com/gin-contrib/zap v0.2.0
 	github.com/gin-gonic/gin v1.9.1
@@ -37,9 +37,9 @@ require (
 	github.com/x448/float16 v0.8.4 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/arch v0.5.0 // indirect
-	golang.org/x/crypto v0.15.0 // indirect
+	golang.org/x/crypto v0.16.0 // indirect
 	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sys v0.14.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
diff --git a/go.sum b/go.sum
index 74ad736..62f1c45 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,7 @@
 github.com/blinklabs-io/cardano-models v0.1.0 h1:tgSAuo8V8cXDeDf4OrevY3Aj5AIJSjI1DINAOrQeda0=
 github.com/blinklabs-io/cardano-models v0.1.0/go.mod h1:XYJvY5XE6vTKbVVK1YqUq615T/bUoeavcc9zG25M8Os=
-github.com/blinklabs-io/gouroboros v0.66.0 h1:1jZ5r+ZUoSzy+hK/NoZeTiUdBCC2w0ikshnM291B3ps=
-github.com/blinklabs-io/gouroboros v0.66.0/go.mod h1:fph4LBNmSliMxt5ut40lXqqbZHWmXjT6p7o1hCyDEbQ=
+github.com/blinklabs-io/gouroboros v0.67.0 h1:+oE3+WsxmkLb5u2V1SHJk6LC8HpiUripyftSe5nnqJ8=
+github.com/blinklabs-io/gouroboros v0.67.0/go.mod h1:Q154NJPs7gB93Tggt8ts9RGIlW2kkknr6M90Q3jh0s4=
 github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
 github.com/bytedance/sonic v1.10.0-rc/go.mod h1:ElCzW+ufi8qKqNW0FY314xriJhyJhuoJ3gFZdAHF7NM=
 github.com/bytedance/sonic v1.10.0 h1:qtNZduETEIWJVIyDl01BeNxur2rW9OwTQ/yBqFRkKEk=
@@ -87,14 +87,14 @@ go.uber.org/zap v1.26.0/go.mod h1:dtElttAiwGvoJ/vj4IwHBS/gXsEu/pZ50mUIRWuG0so=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.5.0 h1:jpGode6huXQxcskEIpOCvrU+tzo81b6+oFLUYXWtH/Y=
 golang.org/x/arch v0.5.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
-golang.org/x/crypto v0.15.0 h1:frVn1TEaCEaZcn3Tmd7Y2b5KKPaZ+I32Q2OA3kYp5TA=
-golang.org/x/crypto v0.15.0/go.mod h1:4ChreQoLWfG3xLDer1WdlH5NdlQ3+mwnQq1YTKY+72g=
+golang.org/x/crypto v0.16.0 h1:mMMrFzRSCF0GvB7Ne27XVtVAaXLrPmgPC7/v0tkwHaY=
+golang.org/x/crypto v0.16.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
 golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
 golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
-golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
+golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=