diff --git a/.github/workflows/merge.yaml b/.github/workflows/merge.yaml
index 350f6b6740..598eb5e11d 100644
--- a/.github/workflows/merge.yaml
+++ b/.github/workflows/merge.yaml
@@ -72,7 +72,7 @@ jobs:
         ruby-version: 3.3.6
     - name: but use cache to speed that up
       if: github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && (steps.update.outputs.updated == 'true' || steps.update.outputs.deleted == 'true'))
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: vendor/bundle
         key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
diff --git a/.github/workflows/sheldon.yaml b/.github/workflows/sheldon.yaml
index b99f6e1366..33346c6f74 100644
--- a/.github/workflows/sheldon.yaml
+++ b/.github/workflows/sheldon.yaml
@@ -59,7 +59,7 @@ jobs:
       with:
         ruby-version: 3.3.6
     - name: but use cache to speed that up
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: vendor/bundle
         key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}