diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 862887e836616cdf71594cf64e6b707d459446cd..6cb229202a40038e943e2b7c7b9e95cabeb187ab 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,6 @@
 before_script:
   - apt-get update
+  - apt-get install gfortran -y
 
 test-3.4:
   image: python:3.4