diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index aef6643..5341dbd 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -336,7 +336,7 @@
     if: needs.ci-config.outputs.enabled == 'yes'
     env:
       jobname: StaticAnalysis
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
     - uses: actions/checkout@v1
     - run: ci/install-dependencies.sh