diff --git a/go.mod b/go.mod
index ab486ce..9fd9cbb 100644
--- a/go.mod
+++ b/go.mod
@@ -21,7 +21,7 @@ require (
 	github.com/sigstore/cosign/v2 v2.2.4
 	github.com/sigstore/rekor v1.3.6
 	github.com/sigstore/sigstore/pkg/signature/kms/aws v1.8.6
-	github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.6
+	github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.7
 	github.com/stretchr/testify v1.9.0
 	github.com/testcontainers/testcontainers-go v0.32.0
 	github.com/testcontainers/testcontainers-go/modules/registry v0.32.0
@@ -89,7 +89,7 @@ require (
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-chi/chi v4.1.2+incompatible // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
-	github.com/go-jose/go-jose/v4 v4.0.1 // indirect
+	github.com/go-jose/go-jose/v4 v4.0.2 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
diff --git a/go.sum b/go.sum
index b3be56d..03b5f49 100644
--- a/go.sum
+++ b/go.sum
@@ -259,8 +259,8 @@ github.com/go-ini/ini v1.67.0 h1:z6ZrTEZqSWOTyH2FlglNbNgARyHG8oLW9gMELqKr06A=
 github.com/go-ini/ini v1.67.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
 github.com/go-jose/go-jose/v3 v3.0.3 h1:fFKWeig/irsp7XD2zBxvnmA/XaRWp5V3CBsZXJF7G7k=
 github.com/go-jose/go-jose/v3 v3.0.3/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
-github.com/go-jose/go-jose/v4 v4.0.1 h1:QVEPDE3OluqXBQZDcnNvQrInro2h0e4eqNbnZSWqS6U=
-github.com/go-jose/go-jose/v4 v4.0.1/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
+github.com/go-jose/go-jose/v4 v4.0.2 h1:R3l3kkBds16bO7ZFAEEcofK0MkrAJt3jlJznWZG0nvk=
+github.com/go-jose/go-jose/v4 v4.0.2/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
 github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
@@ -565,8 +565,8 @@ github.com/sigstore/sigstore/pkg/signature/kms/aws v1.8.6 h1:uVcT1JT4lLkmBQII25P
 github.com/sigstore/sigstore/pkg/signature/kms/aws v1.8.6/go.mod h1:VJ/745ojKNQKbZ1ykO5Vebtnq9vGt8zcgKemQIibBIE=
 github.com/sigstore/sigstore/pkg/signature/kms/azure v1.8.3 h1:xgbPRCr2npmmsuVVteJqi/ERw9+I13Wou7kq0Yk4D8g=
 github.com/sigstore/sigstore/pkg/signature/kms/azure v1.8.3/go.mod h1:G4+I83FILPX6MtnoaUdmv/bRGEVtR3JdLeJa/kXdk/0=
-github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.6 h1:CFtW7RIQ4fOtBzl+1YAnAmcACL4B+Qr/S7PXPdJ+54s=
-github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.6/go.mod h1:rhX2eca5kAqUTwQxQLMnOLmvSxbqF9JZ3rFOoDpQX5w=
+github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.7 h1:zYg1XlbKpQkmE7FpWTkLuUn7RttLAq4FcZ1G9JcqhoY=
+github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.7/go.mod h1:VmUsO1R4OHuyHBEgI4bbSUn0z2nojszrDMvlDxyX/dE=
 github.com/sigstore/sigstore/pkg/signature/kms/hashivault v1.8.3 h1:h9G8j+Ds21zqqulDbA/R/ft64oQQIyp8S7wJYABYSlg=
 github.com/sigstore/sigstore/pkg/signature/kms/hashivault v1.8.3/go.mod h1:zgCeHOuqF6k7A7TTEvftcA9V3FRzB7mrPtHOhXAQBnc=
 github.com/sigstore/timestamp-authority v1.2.2 h1:X4qyutnCQqJ0apMewFyx+3t7Tws00JQ/JonBiu3QvLE=