diff --git a/tests/docker/requirements.txt b/tests/docker/requirements.txt
index 6fa95afc..987dca8f 100644
--- a/tests/docker/requirements.txt
+++ b/tests/docker/requirements.txt
@@ -4,7 +4,7 @@ cachetools==4.2.4
 certifi==2026.7.22
 charset-normalizer==3.4.7
 click==8.5.0
-Flask==2.2.5
+Flask==3.1.3
 Flask-RESTful==0.3.10
 google-auth==2.57.0
 idna==3.19