diff --git a/go.mod b/go.mod
index 260d958..0d95ec5 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/bitcoinschema/go-bap
 go 1.23.1
 
 require (
-	github.com/bitcoin-sv/go-sdk v1.1.7
+	github.com/bitcoin-sv/go-sdk v1.1.18
 	github.com/bitcoinschema/go-aip v0.3.0
 	github.com/bitcoinschema/go-bob v0.5.0
 	github.com/bitcoinschema/go-bpu v0.2.0
@@ -11,5 +11,5 @@ require (
 
 require (
 	github.com/pkg/errors v0.9.1 // indirect
-	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/crypto v0.31.0 // indirect
 )
diff --git a/go.sum b/go.sum
index c5a7613..493c296 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/bitcoin-sv/go-sdk v1.1.7 h1:JbtaYCGUsHM7HTelLKSJp1NuYiG/xSNOdexjJ6w577A=
-github.com/bitcoin-sv/go-sdk v1.1.7/go.mod h1:NOAkJLbjqKOLuxJmb9ABG86ExTZp4HS8+iygiDIUps4=
+github.com/bitcoin-sv/go-sdk v1.1.18 h1:6lMdQGxlLFWysR2O4m8t0FpdEmdvqHIvYjp8+UV8AjI=
+github.com/bitcoin-sv/go-sdk v1.1.18/go.mod h1:E/gP4wd23aa7clO4vYx+xMNwEs/I3shKv5NdwWgNkx8=
 github.com/bitcoinschema/go-aip v0.3.0 h1:Ya3urA5JtqJZxp/y7QqZnZfKWqYVAl9fQblGSonFPGE=
 github.com/bitcoinschema/go-aip v0.3.0/go.mod h1:q/VgxVly3rfkic5riUGre8oJ143wjEebnAod86Pbg7g=
 github.com/bitcoinschema/go-bob v0.5.0 h1:Fjl60RuiQiUuZWLfXE8ETdcgmJBHYu9MYfbrbZU7yHs=
@@ -14,7 +14,7 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
-golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
+golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=