diff --git a/.github/actions/client/install/action.yml b/.github/actions/client/install/action.yml
index 5ee108e..c63184d 100644
--- a/.github/actions/client/install/action.yml
+++ b/.github/actions/client/install/action.yml
@@ -29,7 +29,7 @@ runs:
       env:
         INPUTS_CACHE_PATH: ${{ inputs.cache-path }}
     - name: Cache client
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ${{ inputs.cache-path }}
         key: ${{ inputs.cache-key }}
diff --git a/.github/workflows/buildpack-integration-test.yml b/.github/workflows/buildpack-integration-test.yml
index f212f3e..4ed2043 100644
--- a/.github/workflows/buildpack-integration-test.yml
+++ b/.github/workflows/buildpack-integration-test.yml
@@ -117,7 +117,7 @@ jobs:
       # INSTALL CONFORMANCE CLIENT
       - name: Check for cached conformance test client
         id: check-for-cached-client
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/go/bin/client
           key: ${{ steps.set-cached-client-version.outputs.key }}
@@ -152,7 +152,7 @@ jobs:
       # if-condition on each step will effectively skip optional tests
       - name: Retrieve conformance client
         if: ${{ matrix.builder-source }}
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/go/bin/client
           key: ${{ needs.download-conformance-client.outputs.cache-key }}