diff --git a/21-async/mojifinder/requirements.txt b/21-async/mojifinder/requirements.txt
index f7de911..6831fee 100644
--- a/21-async/mojifinder/requirements.txt
+++ b/21-async/mojifinder/requirements.txt
@@ -1,6 +1,6 @@
 click==7.1.2
 fastapi==0.65.2
-h11==0.12.0
+h11==0.16.0
 pydantic==1.10.13
 starlette==0.40.0
 typing-extensions==3.7.4.3