diff --git a/requirements.txt b/requirements.txt
index b3df57ea..c46f20f4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 gevent==1.4.0; python_version <= "3.6"
 greenlet==0.4.16; python_version <= "3.6"
 gevent>=20.9.0; python_version >= "3.7"
-msgpack>=0.4.4
+msgpack>=0.6.0
 base58
 merkletools
 rsa