diff --git a/.github/workflows/runcpptest.yaml b/.github/workflows/runcpptest.yaml
index 486c62e9..0cabd155 100644
--- a/.github/workflows/runcpptest.yaml
+++ b/.github/workflows/runcpptest.yaml
@@ -18,7 +18,7 @@ jobs:
         # GCC currently has too many problems with the C++ API
         compiler: [AC6, CLANG]
         core: [M0, M4, M55]
-    runs-on: ubuntu-latest    
+    runs-on: ubuntu-22.04    
 
     steps:
       - name: Checkout