diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e1752619f2..a7d5da1647 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,7 +46,7 @@ jobs:
          -DLIBXML2_INCLUDE_DIR=/usr/include/libxml2 \
          -DLIBXML2_LIBRARIES=/usr/lib/x86_64-linux-gnu/libxml2.so \
          ../cmake
-        make -j10
+        make -j`nproc`
         make install
     - 
       name: Package
@@ -98,4 +98,4 @@ jobs:
         repository: IfcOpenShell/ifcopenshell
         tags: ghcr.io/IfcOpenShell/ifcopenshell:latest
         file: ./Dockerfile
-        push: true
\ No newline at end of file
+        push: true