diff --git a/requirements.txt b/requirements.txt
index 3f202d6e..312a693c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,4 @@ flake8-quotes==3.3.1
 flake8-variables-names==0.0.5
 pep8-naming==0.13.2
 pytest==7.1.3
+matplotlib>=3.5.1