diff --git a/requirements.txt b/requirements.txt
index f6d62609..a9e37fb0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 
 aiomcache==0.8.1
 aiohttp==3.8.6
-marshmallow==3.19.0
+marshmallow==3.20.1
 msgpack==1.0.7
 pytest==7.4.2
 pytest-asyncio==0.21.1