diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e934c7e..58be556 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -53,8 +53,8 @@ lint:py:
     stage: lint
     needs: []
     script:
-        - pip install pycodestyle
-        - pycodestyle --config=pycodestyle.cfg --count .
+        - pip install black==^21.12b0
+        - black --diff .
 
 lint:js:
     image: node:14
@@ -114,7 +114,7 @@ deploy:production:
         - master
     environment:
         name: production
-        url: api.sahkoinsinoorikilta.fi
+        url: https://api.sahkoinsinoorikilta.fi
     when: manual
     variables:
         DOCKER_HOST: $CI_DOCKER_HOST