diff --git a/examples/serverless-python-fastapi/requirements.txt b/examples/serverless-python-fastapi/requirements.txt
index fbfb277..f775c37 100644
--- a/examples/serverless-python-fastapi/requirements.txt
+++ b/examples/serverless-python-fastapi/requirements.txt
@@ -2,7 +2,7 @@ anyio==3.6.2
 click==8.1.3
 fastapi==0.95.0
 h11==0.14.0
-idna==3.4
+idna==3.7
 mangum==0.17.0
 pydantic==1.10.7
 sniffio==1.3.0