diff --git a/requirements-hyperopt.txt b/requirements-hyperopt.txt
index 122243bf2..57bb25e2c 100644
--- a/requirements-hyperopt.txt
+++ b/requirements-hyperopt.txt
@@ -8,3 +8,4 @@ scikit-optimize==0.9.0
 filelock==3.4.2
 joblib==1.1.0
 progressbar2==4.0.0
+matplotlib
\ No newline at end of file