diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c03853a..4690f35 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -176,7 +176,7 @@ jobs:
         uses: sigstore/cosign-installer@cad07c2e89fa2edd6e2d7bab4c1aa38e53f76003 # v4.1.1
         if: github.event_name != 'pull_request' && github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
         with:
-          cosign-release: 'v2.6.1'
+          cosign-release: 'v3.1.2'
 
       - name: Sign container image
         if: github.event_name != 'pull_request' && github.ref == format('refs/heads/{0}', github.event.repository.default_branch)