diff --git a/dev-requirements.txt b/dev-requirements.txt
index a18c941cb..9cfee96d3 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -5,7 +5,7 @@ pytest ~=6.1.2
 vcrpy ~=4.1.1
 doctr ~=1.8.0
 ipython ~=7.19.0
-matplotlib ~=3.3.2
+matplotlib ~=3.3.3
 numpydoc ~=1.1.0
 requests-mock ~=1.8.0
 sphinx ~=3.3.1