diff --git a/upper-constraints.txt b/upper-constraints.txt
index e85796669..6548c36a5 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -277,7 +277,7 @@ pydantic_core===2.41.5
 uritemplate===4.2.0
 docutils===0.21.2
 threadpoolctl===3.6.0
-os-ken===4.1.1
+os-ken===4.1.2
 ujson===5.11.0
 selenium===4.41.0
 pytest-subtests===0.15.0