diff --git a/packages/attest/package.json b/packages/attest/package.json
index 22f01f4d7b..f73cfed25f 100644
--- a/packages/attest/package.json
+++ b/packages/attest/package.json
@@ -35,7 +35,7 @@
     "url": "https://github.com/actions/toolkit/issues"
   },
   "devDependencies": {
-    "@sigstore/mock": "^0.7.4",
+    "@sigstore/mock": "^0.10.0",
     "@sigstore/rekor-types": "^2.0.0",
     "@types/jsonwebtoken": "^9.0.6",
     "nock": "^13.5.1",