diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6202e003ab3b9d1fa2684ce731202254d495e888..f91455abec3f564c6d785e1938ee4a7f6eab8727 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -13,7 +13,7 @@ black:
   stage: linting
   image: python:3
   before_script:
-    - pip3 install -U pip pretix black
+    - pip3 install -U pip wheel pretix black
   script:
     - black --check .