diff --git a/go.mod b/go.mod
index 1723224..9316ed4 100644
--- a/go.mod
+++ b/go.mod
@@ -18,7 +18,7 @@ require (
 	github.com/secure-systems-lab/go-securesystemslib v0.8.0
 	github.com/sigstore/cosign/v2 v2.4.0
 	github.com/sigstore/rekor v1.3.6
-	github.com/sigstore/sigstore v1.8.8
+	github.com/sigstore/sigstore v1.8.9
 	github.com/sigstore/sigstore/pkg/signature/kms/aws v1.8.9
 	github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.8.9
 	github.com/stretchr/testify v1.9.0
diff --git a/go.sum b/go.sum
index 6953b1a..d846cd9 100644
--- a/go.sum
+++ b/go.sum
@@ -513,8 +513,8 @@ github.com/sigstore/protobuf-specs v0.3.2 h1:nCVARCN+fHjlNCk3ThNXwrZRqIommIeNKWw
 github.com/sigstore/protobuf-specs v0.3.2/go.mod h1:RZ0uOdJR4OB3tLQeAyWoJFbNCBFrPQdcokntde4zRBA=
 github.com/sigstore/rekor v1.3.6 h1:QvpMMJVWAp69a3CHzdrLelqEqpTM3ByQRt5B5Kspbi8=
 github.com/sigstore/rekor v1.3.6/go.mod h1:JDTSNNMdQ/PxdsS49DJkJ+pRJCO/83nbR5p3aZQteXc=
-github.com/sigstore/sigstore v1.8.8 h1:B6ZQPBKK7Z7tO3bjLNnlCMG+H66tO4E/+qAphX8T/hg=
-github.com/sigstore/sigstore v1.8.8/go.mod h1:GW0GgJSCTBJY3fUOuGDHeFWcD++c4G8Y9K015pwcpDI=
+github.com/sigstore/sigstore v1.8.9 h1:NiUZIVWywgYuVTxXmRoTT4O4QAGiTEKup4N1wdxFadk=
+github.com/sigstore/sigstore v1.8.9/go.mod h1:d9ZAbNDs8JJfxJrYmulaTazU3Pwr8uLL9+mii4BNR3w=
 github.com/sigstore/sigstore-go v0.5.1 h1:5IhKvtjlQBeLnjKkzMELNG4tIBf+xXQkDzhLV77+/8Y=
 github.com/sigstore/sigstore-go v0.5.1/go.mod h1:TuOfV7THHqiDaUHuJ5+QN23RP/YoKmsbwJpY+aaYPN0=
 github.com/sigstore/sigstore/pkg/signature/kms/aws v1.8.9 h1:tgpdvjyoEgYFeTBFe4MHvBKsG+J4E7NVtstChIExVT8=