diff --git a/requirements.txt b/requirements.txt
index d81b9787..e2a7dc36 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ Jinja2==3.1.4
 jmespath==0.10.0
 Markdown==3.3.3
 MarkupSafe==2.1.5
-msgpack==1.0.0
+msgpack==1.2.1
 ndg-httpsclient==0.5.1
 oauth2client==4.1.3
 oauthlib==3.1.0