diff --git a/tox.ini b/tox.ini
index cadccd84..7c7f15ab 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,7 +17,7 @@ deps=
     mypy_boto3_s3
     pydantic-settings
     werkzeug
-    fast-depends
+    fast-depends~=2.4.0
 extras=
     yaml
 commands = pytest