diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c018c30eee647a0db36e644299f1a711cee1d9d0..6c018fe564d50a16b3b1ae64640391a175519271 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,5 +4,6 @@ build:
     - docker
   script:
     - pip install Cython==0.27.3
+    - pip install numpy==1.14.1
     - pip install --upgrade pip setuptools wheel
     - pip install '.'