diff --git a/.github/workflows/redteam-scan.yml b/.github/workflows/redteam-scan.yml
index 9360eff..e6519ff 100644
--- a/.github/workflows/redteam-scan.yml
+++ b/.github/workflows/redteam-scan.yml
@@ -48,7 +48,7 @@ jobs:
           npm install -g promptfoo@latest
 
       - name: Cache promptfoo
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6
         with:
           path: ~/.cache/promptfoo
           key: ${{ runner.os }}-promptfoo-${{ hashFiles('prompts/**') }}