diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6ab2fd5e1ad1b1d7b882920d4bd58a3b580cad9d..1b124615eda500b761f053e71df50227831d3b4a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -40,7 +40,7 @@ build-openapi-scheme:
 
 run_test_cases:
   stage: test
-  image: python:3.11-slim
+  image: python:3.11
   before_script:
     - *install_requirements
   script: