diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 18b428fe1e56432cda6f39b7b67c4fcce9ece30c..5f9b694a3f84ec950568376bcd5d6616ced37005 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,7 +19,7 @@ test:
   before_script:
     - adduser --disabled-password --gecos "Test User" testuser
   script:
-    - sudo -u testuser sh -c 'poetry export -f requirements.txt | eatmydata pip install -r /dev/stdin'
+    - sudo -u testuser sh -c 'poetry export --without-hashes --dev -f requirements.txt | eatmydata pip install -r /dev/stdin'
     - sudo -u testuser eatmydata poetry run tox
 
 build_dist:
@@ -106,7 +106,7 @@ pages:
   image:
     name: registry.edugit.org/teckids/docker-images/python-pimped
   script:
-  - poetry export -f requirements.txt | eatmydata pip install -r /dev/stdin
+  - poetry export --without-hashes --dev -f requirements.txt | eatmydata pip install -r /dev/stdin
   - poetry run make -C docs html BUILDDIR=../public/docs
   artifacts:
     paths: