diff --git a/go.mod b/go.mod
index 466cad139..4d6c02506 100644
--- a/go.mod
+++ b/go.mod
@@ -28,7 +28,7 @@ require (
 	github.com/ryanuber/go-glob v1.0.0
 	github.com/sigstore/cosign/v2 v2.4.1
 	github.com/sigstore/rekor v1.3.7
-	github.com/sigstore/sigstore v1.8.11
+	github.com/sigstore/sigstore v1.8.12
 	github.com/stretchr/testify v1.10.0
 	github.com/theupdateframework/go-tuf v0.7.0
 	github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399
@@ -264,7 +264,7 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 // indirect
 	golang.org/x/mod v0.22.0 // indirect
-	golang.org/x/oauth2 v0.24.0 // indirect
+	golang.org/x/oauth2 v0.25.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
 	golang.org/x/term v0.28.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
diff --git a/go.sum b/go.sum
index dd004f6f9..d3643ce84 100644
--- a/go.sum
+++ b/go.sum
@@ -260,8 +260,8 @@ github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
 github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
 github.com/containerd/stargz-snapshotter/estargz v0.14.3 h1:OqlDCK3ZVUO6C3B/5FSkDwbkEETK84kQgEeFwDC+62k=
 github.com/containerd/stargz-snapshotter/estargz v0.14.3/go.mod h1:KY//uOCIkSuNAHhJogcZtrNHdKrA99/FCCRjE3HD36o=
-github.com/coreos/go-oidc/v3 v3.11.0 h1:Ia3MxdwpSw702YW0xgfmP1GVCMA9aEFWu12XUZ3/OtI=
-github.com/coreos/go-oidc/v3 v3.11.0/go.mod h1:gE3LgjOgFoHi9a4ce4/tJczr0Ai2/BoDhf0r5lltWI0=
+github.com/coreos/go-oidc/v3 v3.12.0 h1:sJk+8G2qq94rDI6ehZ71Bol3oUHy63qNYmkiSjrc/Jo=
+github.com/coreos/go-oidc/v3 v3.12.0/go.mod h1:gE3LgjOgFoHi9a4ce4/tJczr0Ai2/BoDhf0r5lltWI0=
 github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/cyberphone/json-canonicalization v0.0.0-20231011164504-785e29786b46 h1:2Dx4IHfC1yHWI12AxQDJM1QbRCDfk6M+blLzlZCXdrc=
 github.com/cyberphone/json-canonicalization v0.0.0-20231011164504-785e29786b46/go.mod h1:uzvlm1mxhHkdfqitSA92i7Se+S9ksOn3a3qmv/kyOCw=
@@ -757,8 +757,8 @@ github.com/sigstore/rekor v1.3.7 h1:Z5UW5TmqbTZnyOFkMRfi32q/CWcxK6VuzIkx+33mbq8=
 github.com/sigstore/rekor v1.3.7/go.mod h1:TihqJscZ6L6398x68EHY82t0AOnGYfrQ0siXe3WgbR4=
 github.com/sigstore/scaffolding v0.7.18 h1:0Uko31b+BHSfoh2v0k61V3H7KwAvOA2gffda3mKfTGk=
 github.com/sigstore/scaffolding v0.7.18/go.mod h1:uvV0f2ky//WDhCkOLm3McxuxbUmDG+UwsmylPWdYOB8=
-github.com/sigstore/sigstore v1.8.11 h1:tEqeQqbT+awtM87ec9KEeSUxT/AFvJNawneYJyAkFrQ=
-github.com/sigstore/sigstore v1.8.11/go.mod h1:fdrFQosxCQ4wTL5H1NrZcQkqQ72AQbPjtpcL2QOGKV0=
+github.com/sigstore/sigstore v1.8.12 h1:S8xMVZbE2z9ZBuQUEG737pxdLjnbOIcFi5v9UFfkJFc=
+github.com/sigstore/sigstore v1.8.12/go.mod h1:+PYQAa8rfw0QdPpBcT+Gl3egKD9c+TUgAlF12H3Nmjo=
 github.com/sigstore/sigstore-go v0.6.2 h1:8uiywjt73vzfrGfWYVwVsiB1E1Qmwmpgr1kVpl4fs6A=
 github.com/sigstore/sigstore-go v0.6.2/go.mod h1:pOIUH7Jx+ctwMICo+2zNrViOJJN5sGaQgwX4yAVJkA0=
 github.com/sigstore/sigstore/pkg/signature/kms/aws v1.8.12 h1:EC3UmIaa7nV9sCgSpVevmvgvTYTkMqyrRbj5ojPp7tE=
@@ -1018,8 +1018,8 @@ golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4Iltr
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
-golang.org/x/oauth2 v0.24.0 h1:KTBBxWqUa0ykRPLtV69rRto9TLXcqYkeswu48x/gvNE=
-golang.org/x/oauth2 v0.24.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
+golang.org/x/oauth2 v0.25.0 h1:CY4y7XT9v0cRI9oupztF8AgiIu99L/ksR/Xp/6jrZ70=
+golang.org/x/oauth2 v0.25.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=