diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 43cf90bb9e..41d40c15d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,6 +21,12 @@ jobs:
     runs-on: "ubuntu-22.04" # _SLANG_DEV_CONTAINER_BASE_IMAGE_ (keep in sync)
 
     steps:
+      - name: Clean unnecessary files
+        run: |
+          rm -rf /usr/share/dotnet
+          rm -rf /opt/ghc
+          rm -rf "/usr/share/local/boost"
+
       - name: "Checkout Repository"
         uses: "actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683"