diff --git a/pyproject.toml b/pyproject.toml
index 303e6375..296b4744 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ server = [
   "atomicwrites==1.4.1",
   "coloredlogs==15.0.1",
   "cryptography==48.0.0",
-  "orjson==3.11.8",
+  "orjson==3.11.9",
   "zeroconf==0.148.0",
   "home-assistant-chip-core==2025.7.0",
 ]