diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0a48d3d5b893e1bbb015dfa7594131e2250e6f41..e131810f6585a4418a0b2d07e637b7fbea743ba1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 ---
-image: python:3
+image: python:3.4
 
 stages:
   - test