diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 741bbe73..edb7892a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -15,6 +15,7 @@ variables:
   CHECK_PKG_VERSIONS:
     description: Whether to run additional tests against min/max/random selection of dependencies. Set to 1 for running. 
     value: 0
+  QT_QPA_PLATFORM: "offscreen"
 
 workflow:
   rules: