diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b9c2d78dca1a7efde51667d4e9446ce851ea454a..27d9fb0a29dc2a87d3ce58c564c1518b05c11987 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -13,7 +13,8 @@ before_script:
     - export PATH="$PYENV_ROOT/bin:$PATH"
     - eval "$(pyenv init -)"
     # Install tox
-    - pyenv install 3.6 3.7
+    - pyenv install 3.6.8
+    - pyenv install 3.7.2
 
 tests:
     script: