diff --git a/requirements.txt b/requirements.txt
index 54d130f..dc28d15 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 cycler==0.10.0
 kiwisolver==1.1.0
 matplotlib==3.1.1
-mpmath==1.1.0
+mpmath==1.3.0
 numpy==1.16.4
 pyparsing==2.4.0
 python-dateutil==2.8.0