diff --git a/requirements.txt b/requirements.txt
index a562200..7aa3dd4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ h5py==2.10.0
 importlib-metadata==1.7.0
 kiwisolver==1.2.0
 matplotlib==3.3.0
-mpmath==1.1.0
+mpmath==1.3.0
 ndim==0.1.4
 numpy==1.19.1
 orthopy==0.8.4