diff --git a/api-book/requirements.txt b/api-book/requirements.txt
index 413724e..456f719 100644
--- a/api-book/requirements.txt
+++ b/api-book/requirements.txt
@@ -52,7 +52,7 @@ nest-asyncio==1.5.1
 nested-lookup==0.2.21
 nodeenv==1.5.0
 notebook==6.2.0
-numpy==1.19.5
+numpy==1.22.0
 packaging==20.9
 pandas==1.1.5
 pandocfilters==1.4.3