diff --git a/.github/workflows/build_slim_packages.yaml b/.github/workflows/build_slim_packages.yaml
index c57df7e2e..de96df4b2 100644
--- a/.github/workflows/build_slim_packages.yaml
+++ b/.github/workflows/build_slim_packages.yaml
@@ -73,11 +73,11 @@ jobs:
         brew install curl zip unzip gnu-sed kerl unixodbc freetds
         echo "/usr/local/bin" >> $GITHUB_PATH
         git config --global credential.helper store
-    # - uses: actions/cache@v2
-    #   id: cache
-    #   with:
-    #     path: ~/.kerl
-    #     key: erl${{ matrix.erl_otp }}-macos10.15
+    - uses: actions/cache@v2
+      id: cache
+      with:
+        path: ~/.kerl
+        key: erl${{ matrix.erl_otp }}-macos10.15
     - name: build erlang
       # if: steps.cache.outputs.cache-hit != 'true'
       timeout-minutes: 60