diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c3f5b851f5ddf4e64750b58793e3e3e96ac0848d..ddb7f7e46c88314c8dea1b6f1cac6f1cef54e7fb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: python:alpine
+image: python:3.6-buster
 
 before_script:
   - pip install mkdocs