diff --git a/docs/requirements.txt b/docs/requirements.txt
index c307982..14d42ee 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -38,7 +38,7 @@ nbconvert==5.3.1
 nbformat==4.4.0
 nbsphinx==0.3.5
 notebook==6.4.1
-numpy==1.15.4
+numpy==1.22.0
 optlang==1.4.3
 packaging==18.0
 pandas==0.23.4