diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3930eedf7cfebad65e1b454ad93f8cee616c9d02..d87d3ffb68c350b0510713e5c15499bddf46c10b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,6 +4,7 @@ default:
 before_script:
   - python --version
   - pytest --version
+  - pip3 install networkx
 
 test:
   stage: test