diff --git a/.github/workflows/test_cpac.yml b/.github/workflows/test_cpac.yml
index bcc56e91..70d3e44b 100644
--- a/.github/workflows/test_cpac.yml
+++ b/.github/workflows/test_cpac.yml
@@ -18,7 +18,7 @@ jobs:
       SINGULARITY_TMPDIR: $GITHUB_WORKSPACE/.singularity/tmp
 
     strategy:
-      max-parallel: 2
+      max-parallel: 1  # This'll slow it down but increase stability
       matrix:
         platform: [docker]
         tag: [latest, nightly]
@@ -60,6 +60,14 @@ jobs:
         pip install coverage coveralls nipype
     - name: Install cpac
       run: cd $GITHUB_WORKSPACE && pip install -e .
+    - name: Maximize space
+      uses: easimon/maximize-build-space@v8
+      with:
+        remove-dotnet: 'true'
+        remove-android: 'true'
+        remove-haskell: 'true'
+        overprovision-lvm: 'true'
+        remove-docker-images: 'true'  # This'll slow it down but increase stability
     - name: Test cpac, platform and tag specified
       run: |
         coverage run --append -m pytest --basetemp=${PWD}/tmp --doctest-modules --platform ${{ matrix.platform }} --image ghcr.io/fcp-indi/c-pac --tag ${{ matrix.tag }} .