diff --git a/requirements.dev.txt b/requirements.dev.txt
index 5566ad219..3f8457b68 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -1,4 +1,4 @@
-anyio~=4.8.0
+anyio~=4.9.0
 autoflake~=2.3.1
 black~=25.1.0
 isort~=6.0.0