diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a7f9330df..8df40ccc1 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -52,7 +52,7 @@ jobs:
       run: |
         cd build
         # using the default number of threads (-j) causes G++ to crash
-        cmake --build . -j 2
+        cmake --build . -j 6
         cmake --build . --target install
     - name: test
       run: |