diff --git a/.github/workflows/fio.yml b/.github/workflows/fio.yml
index 539a222..e1f9cfd 100644
--- a/.github/workflows/fio.yml
+++ b/.github/workflows/fio.yml
@@ -243,7 +243,7 @@ jobs:
 
       # ── Cosign: install ───────────────────────────────────────
       - name: Install Cosign
-        uses: sigstore/cosign-installer@ba7bc0a3fef59531c69a25acd34668d6d3fe6f22 # v4.1.0
+        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
 
       # ── Cosign: sign image (keyless via Fulcio OIDC) ──────────
       - name: Sign image