diff --git a/requirements.txt b/requirements.txt
index 78ba2686..2a7d5b3a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 numpy == 1.19.1
 scipy == 1.5.2
 pandas == 1.1.0
-matplotlib == 3.3.0
+matplotlib == 3.3.1
 cvxpy == 1.1.4