diff --git a/docs/requirements.txt b/docs/requirements.txt
index 3ff5be5..db2bfbc 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 scipy==1.1.0
 setuptools==40.2.0
-numpy==1.15.0
+numpy==1.22.0