diff --git a/requirements-dev.txt b/requirements-dev.txt
index 17d774a6..8e095b50 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -106,7 +106,7 @@ tomli==2.0.1 ; python_version < '3.11'
 
 tomlkit==0.13.2 ; python_version >= '3.7'
 
-trio==0.26.2
+trio==0.27.0
 
 types-python-dateutil==2.9.0.20241003