diff --git a/pyproject.toml b/pyproject.toml
index e43d13b..c90e507 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ pyright = ">=1.1.350,<1.2"
 fastapi = ">=0.116.0,<1"  # just for testing the compatibilty
 anyio = ">=4.9.0,<5.0.0"
 httpx = ">=0.28.1,<0.29.0"
-trio = ">=0.30.0,<0.31.0"
+trio = ">=0.30.0,<0.32.0"
 
 [tool.ruff]
 line-length = 115