diff --git a/action.yml b/action.yml
index 315f15a..6d56d2c 100644
--- a/action.yml
+++ b/action.yml
@@ -20,7 +20,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 # v3.5.0
+    - uses: sigstore/cosign-installer@4959ce089c160fddf62f7b42464195ba1a56d382 # v3.6.0
     - run: |
         cd $GITHUB_ACTION_PATH \
         && ./ct.sh \