diff --git a/.github/workflows/release-operator.yml b/.github/workflows/release-operator.yml
index da596ad..34fffc8 100644
--- a/.github/workflows/release-operator.yml
+++ b/.github/workflows/release-operator.yml
@@ -316,7 +316,7 @@ jobs:
           buildkitd-flags: --debug
 
       - name: Setup cosign
-        uses: sigstore/cosign-installer@398d4b0eeef1380460a10c8013a76f728fb906ac # v3
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
       - name: Login to Operator Registry
         uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4
@@ -548,7 +548,7 @@ jobs:
         uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
 
       - name: Setup cosign
-        uses: sigstore/cosign-installer@398d4b0eeef1380460a10c8013a76f728fb906ac # v3
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
       - name: Login to Bundle Registry
         uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4