diff --git a/.github/workflows/actions.yml b/.github/workflows/actions.yml
index 7eb2e0b..450af57 100644
--- a/.github/workflows/actions.yml
+++ b/.github/workflows/actions.yml
@@ -66,7 +66,7 @@ jobs:
         run: make -j2
 
       - name: check TREXIO
-        run: make -j2 check
+        run: make -j1 check  # Non-parallel run 
 
       - name: Archive test log file
         if: failure()