diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5fe11da73b15dc167c85737bbfe34bafd66b1cbb..e7ee7fe80b54eef3357aba4105c9b470c693f65c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ image: "python:3.6"
 before_script:
   - python --version
   - pip install -U pip
-  - pip install -r requirements.txt
+  - pip install --no-use-pep517 -r requirements.txt
   - pip install -r requirements-dev.txt
 
 stages: