diff --git a/requirements.txt b/requirements.txt
index b48d8bd12..4f1055233 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ google-api-core>=1.22.1
 imagesize
 nbconvert~=7.2.6
 nbformat~=5.7.0
-numpy
+numpy~=1.21.6
 opencv-python
 PILLOW
 pydantic>=1.8,<2.0