diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e9dbca4..d97e6dd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ stages:
   - deploy
 
 tests:
-  image: python:3.6-slim-stretch
+  image: python:3.7-slim-stretch
   stage: test
   script:
     - python3 -m pip install pipenv
@@ -14,7 +14,7 @@ tests:
     - docker
 
 pages:
-  image: python:3.6-slim-stretch
+  image: python:3.7-slim-stretch
   stage: deploy
   script:
   - python3 -m pip install pipenv