diff --git a/.github/workflows/regression.yml b/.github/workflows/regression.yml
index 8af54862..1cdd80a2 100644
--- a/.github/workflows/regression.yml
+++ b/.github/workflows/regression.yml
@@ -34,18 +34,21 @@ jobs:
                               autotools-dev automake \
                               libxt-dev libxpm-dev libmotif-dev \
                               tcl-dev libffi-dev
+     - name: ccache
+       uses: hendrikmuhs/ccache-action@v1.2
      - name: Build Yosys
        run: |
+         export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
          cd ${{ github.workspace }}/coriolis-2.x/src/yosys
          make ENABLE_PYOSYS=1 config-gcc
-         make ENABLE_PYOSYS=1 PREFIX=${{ github.workspace }}/coriolis-2.x/Linux.x86_64/Release.Shared/install install
+         make ENABLE_PYOSYS=1 DESTDIR=${{ github.workspace }}/coriolis-2.x/Linux.x86_64/Release.Shared/install install
      - name: Check for binaries
        run: ls ${{ github.workspace }}/coriolis-2.x/Linux.x86_64/Release.Shared/install/bin
      - name: Build Alliance
-       run: >
-         ${{ github.workspace }}/coriolis-2.x/src/coriolis/bootstrap/allianceInstaller.sh \
-           --github-runner=${{ github.workspace }}
+       run: |
+         export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+         ${{ github.workspace }}/coriolis-2.x/src/coriolis/bootstrap/allianceInstaller.sh --github-runner=${{ github.workspace }}
      - name: Build Coriolis
-       run: >
-         ${{ github.workspace }}/coriolis-2.x/src/coriolis/bootstrap/ccb.py \
-           --root=${{ github.workspace }}/coriolis-2.x --project=coriolis --make="-j4 install"
+       run: |
+         export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+         ${{ github.workspace }}/coriolis-2.x/src/coriolis/bootstrap/ccb.py --root=${{ github.workspace }}/coriolis-2.x --project=coriolis --make="-j4 install"