diff --git a/pkg/signature/kms/aws/go.mod b/pkg/signature/kms/aws/go.mod
index 3115a636c..f552fd0ad 100644
--- a/pkg/signature/kms/aws/go.mod
+++ b/pkg/signature/kms/aws/go.mod
@@ -5,7 +5,7 @@ replace github.com/sigstore/sigstore => ../../../../
 go 1.20
 
 require (
-	github.com/aws/aws-sdk-go v1.50.35
+	github.com/aws/aws-sdk-go v1.51.1
 	github.com/aws/aws-sdk-go-v2 v1.25.3
 	github.com/aws/aws-sdk-go-v2/config v1.27.7
 	github.com/aws/aws-sdk-go-v2/service/kms v1.29.2
diff --git a/pkg/signature/kms/aws/go.sum b/pkg/signature/kms/aws/go.sum
index 0d093d426..9b70da57c 100644
--- a/pkg/signature/kms/aws/go.sum
+++ b/pkg/signature/kms/aws/go.sum
@@ -1,5 +1,5 @@
-github.com/aws/aws-sdk-go v1.50.35 h1:llQnNddBI/64pK7pwUFBoWYmg8+XGQUCs214eMbSDZc=
-github.com/aws/aws-sdk-go v1.50.35/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
+github.com/aws/aws-sdk-go v1.51.1 h1:AFvTihcDPanvptoKS09a4yYmNtPm3+pXlk6uYHmZiFk=
+github.com/aws/aws-sdk-go v1.51.1/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
 github.com/aws/aws-sdk-go-v2 v1.25.3 h1:xYiLpZTQs1mzvz5PaI6uR0Wh57ippuEthxS4iK5v0n0=
 github.com/aws/aws-sdk-go-v2 v1.25.3/go.mod h1:35hUlJVYd+M++iLI3ALmVwMOyRYMmRqUXpTtRGW+K9I=
 github.com/aws/aws-sdk-go-v2/config v1.27.7 h1:JSfb5nOQF01iOgxFI5OIKWwDiEXWTyTgg1Mm1mHi0A4=