diff --git a/.github/workflows/release-dryrun.yml b/.github/workflows/release-dryrun.yml
index 80b500f..a05ac91 100644
--- a/.github/workflows/release-dryrun.yml
+++ b/.github/workflows/release-dryrun.yml
@@ -48,7 +48,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install cosign
-        uses: sigstore/cosign-installer@7e8b541eb2e61bf99390e1afd4be13a184e9ebc5 # v3.10.1
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
       # syft generates the per-archive SBOMs declared in .goreleaser.yaml.
       - name: Install syft
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b320eec..bf89d5a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -39,7 +39,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install cosign
-        uses: sigstore/cosign-installer@7e8b541eb2e61bf99390e1afd4be13a184e9ebc5 # v3.10.1
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
       # syft generates the per-archive SBOMs declared in .goreleaser.yaml.
       - name: Install syft