diff --git a/.github/workflows/build_slim_packages.yaml b/.github/workflows/build_slim_packages.yaml
index 048314d3b..fa63189e8 100644
--- a/.github/workflows/build_slim_packages.yaml
+++ b/.github/workflows/build_slim_packages.yaml
@@ -141,7 +141,7 @@ jobs:
     - name: prepare
       run: |
         brew update
-        brew install curl zip unzip kerl coreutils
+        brew install curl zip unzip kerl coreutils openssl@1.1
         echo "/usr/local/opt/bison/bin" >> $GITHUB_PATH
         echo "/usr/local/bin" >> $GITHUB_PATH
         echo "EMQX_NAME=${{ matrix.profile }}" >> $GITHUB_ENV
@@ -150,7 +150,7 @@ jobs:
       id: cache
       with:
         path: ~/.kerl/${{ matrix.otp }}
-        key: otp-install-${{ matrix.otp }}-${{ matrix.macos }}
+        key: otp-install-${{ matrix.otp }}-${{ matrix.macos }}-static-ssl
     - name: build erlang
       if: steps.cache.outputs.cache-hit != 'true'
       timeout-minutes: 60
@@ -176,6 +176,11 @@ jobs:
         make ${{ matrix.profile }}-tgz
     - name: test
       run: |
+        # cleanup build-related packages to simulate clean environment
+        for f in $(brew list); do
+          brew uninstall --force --ignore-dependencies --zap --quiet $f
+        done
+        brew install curl
         pkg_name=$(find _packages/${{ matrix.profile }} -mindepth 1 -maxdepth 1 -iname \*.tar.gz)
         mkdir -p emqx
         tar -C emqx -zxf $pkg_name