diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ec5ab4e..649ec47 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -307,7 +307,7 @@ jobs:
 
       - name: Save the renv cache
         if: always()
-        uses: actions/cache/save@0057852bfaa89a56745cba8c7296529d2fc39830  # v4.3.0
+        uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v6.1.0
         with:
           path: /opt/renv-cache
           key: renv-${{ runner.os }}-R${{ env.R_APT_VERSION }}-${{ hashFiles('renv.lock') }}-${{ github.run_id }}
diff --git a/.github/workflows/null-calibration-comparators.yml b/.github/workflows/null-calibration-comparators.yml
index c4e43f3..67e6c93 100644
--- a/.github/workflows/null-calibration-comparators.yml
+++ b/.github/workflows/null-calibration-comparators.yml
@@ -160,7 +160,7 @@ jobs:
 
       - name: Save the renv cache
         if: always()
-        uses: actions/cache/save@0057852bfaa89a56745cba8c7296529d2fc39830  # v4.3.0
+        uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9  # v6.1.0
         with:
           path: /opt/renv-cache
           key: renv-${{ runner.os }}-R${{ env.R_APT_VERSION }}-${{ hashFiles('renv.lock') }}-${{ github.run_id }}