diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6181631..71b9164 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,6 +20,7 @@ build:docker:
       changes:
         - app/**/*
         - Dockerfile
+        - requirements.txt
     - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
   tags: [ docker ]
   before_script: