diff --git a/requirements/prod.txt b/requirements/prod.txt
index ce3905b..3181f77 100644
--- a/requirements/prod.txt
+++ b/requirements/prod.txt
@@ -1,3 +1,3 @@
 requests==2.22.0
 urllib3==1.25.6
-marshmallow==3.2.1
+marshmallow==3.23.1