diff --git a/.github/workflows/Test and Deploy Mend.yml b/.github/workflows/Test and Deploy Mend.yml
index e75a5ea..3c9aeba 100644
--- a/.github/workflows/Test and Deploy Mend.yml	
+++ b/.github/workflows/Test and Deploy Mend.yml	
@@ -81,7 +81,7 @@ jobs:
           cp dist/${{ steps.set_env_vars.outputs.TOOL_DIR }}-${{ steps.set_env_vars.outputs.VERSION }}-py3-none-any.whl dist/${{ steps.set_env_vars.outputs.PYTHON_VERSION }}/
 
       - name: cache whl
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: dist/${{ steps.set_env_vars.outputs.PYTHON_VERSION }}/${{ steps.set_env_vars.outputs.TOOL_DIR }}-${{ steps.set_env_vars.outputs.VERSION }}-py3-none-any.whl
           key: ${{ steps.set_env_vars.outputs.PYTHON_VERSION }}_${{ steps.set_env_vars.outputs.TOOL_DIR }}_${{ github.run_id }}
@@ -103,7 +103,7 @@ jobs:
           cp dist/ws_cleanup_tool-${{ steps.set_env_vars.outputs.VERSION }}-py3-none-any.whl dist/${{ steps.set_env_vars.outputs.PYTHON_VERSION }}/
 
       - name: cache whl - WS
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: dist/${{ steps.set_env_vars.outputs.PYTHON_VERSION }}/ws_cleanup_tool-${{ steps.set_env_vars.outputs.VERSION }}-py3-none-any.whl
           key: ${{ steps.set_env_vars.outputs.PYTHON_VERSION }}_ws_cleanup_tool_${{ github.run_id }}
@@ -122,12 +122,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Restore whl
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: dist/${{needs.build-and-test.outputs.min_py_ver}}/${{needs.build-and-test.outputs.tool_dir}}-${{needs.build-and-test.outputs.version}}-py3-none-any.whl
           key: ${{needs.build-and-test.outputs.min_py_ver}}_${{needs.build-and-test.outputs.tool_dir}}_${{ github.run_id }}
       - name: Restore whl - ws
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: dist/${{needs.build-and-test.outputs.min_py_ver}}/ws_cleanup_tool-${{needs.build-and-test.outputs.version}}-py3-none-any.whl
           key: ${{needs.build-and-test.outputs.min_py_ver}}_ws_cleanup_tool_${{ github.run_id }}