diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2a6f03031d9dadbd24888691dba003c959da1786..8a4e34a3075f1ccdb00d219d58cbe812c63b2a40 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,7 +8,7 @@ pages:
     - mkdir build
     - cd build
     - cmake ..
-    - make library
+    - make -j $(nproc) library
     - cd ../docs
     - make html
     - cd ..