diff --git a/requirements.txt b/requirements.txt
index 43a46f1..92cf026 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -140,7 +140,7 @@ more-itertools==10.8.0
 mpmath==1.3.0
 msal==1.34.0
 msal-extensions==1.3.1
-msgpack==1.1.2
+msgpack==1.2.1
 msgspec==0.20.0
 multidict==6.7.0
 multiprocess==0.70.16