diff --git a/requirements.txt b/requirements.txt
index 96775c0..5067fa2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ cycler==0.10.0
 fastcache==1.1.0
 kiwisolver==1.3.1
 matplotlib==3.3.3
-mpmath==1.1.0
+mpmath==1.2.1
 numpy==1.19.5
 pyparsing==2.4.7
 python-dateutil==2.8.1