diff --git a/setup.py b/setup.py
index bd59c80..25eb837 100644
--- a/setup.py
+++ b/setup.py
@@ -74,7 +74,7 @@
               'twine<7',
           ],
           'service': [
-              'responder<4',
+              'responder<5',
           ],
           'test': [
               'httpx<0.29',