diff --git a/truss_ha_conversation/pyproject.toml b/truss_ha_conversation/pyproject.toml
index 56a0a4c0..6d01479d 100644
--- a/truss_ha_conversation/pyproject.toml
+++ b/truss_ha_conversation/pyproject.toml
@@ -11,7 +11,7 @@ license = { text = "MIT" }
 
 dependencies = [
   "aiohttp>=3.9.0,<4.0.0",
-  "async-timeout>=4.0.0,<5.0.0",
+  "async-timeout>=4.0.0,<6.0.0",
   "voluptuous>=0.13.1,<1.0.0",
 ]