diff --git a/pyproject.toml b/pyproject.toml
index 31c76ac..d02a869 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ protobuf = "5.29.5"
 grpcio = "1.73.0"
 grpcio-tools = "1.71.0"
 jsonpickle = ">=3.0,<4.2"
-pymitter = ">=0.4,<1.1"
+pymitter = ">=0.4,<1.2"
 typing-extensions = ">=4.11,<4.15"
 types-protobuf = "6.30.2.20250703"
 pympler = "1.1"