diff --git a/requirements.txt b/requirements.txt
index b74c7a5..652f601 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 numpy==1.17.4
 scipy==1.3.3
-matplotlib==3.1.2
+matplotlib==3.3.4
 sliceplots==0.3.2
 unyt==2.4.0