diff --git a/python/requirements/tune/requirements_tune.txt b/python/requirements/tune/requirements_tune.txt
index 4d09dea81b473..1acce922a01c2 100644
--- a/python/requirements/tune/requirements_tune.txt
+++ b/python/requirements/tune/requirements_tune.txt
@@ -21,7 +21,7 @@ keras==2.4.3
 kubernetes==17.17.0
 lightgbm==3.2.1
 matplotlib==3.3.4; python_version < '3.7'
-matplotlib==3.4.2; python_version >= '3.7'
+matplotlib==3.5.1; python_version >= '3.7'
 mlflow==1.19.0
 mock==4.0.3
 mxnet==1.8.0.post0