diff --git a/zstackbuild/pypi_source/requirements.txt b/zstackbuild/pypi_source/requirements.txt
index fb686993a..f6b025d5a 100644
--- a/zstackbuild/pypi_source/requirements.txt
+++ b/zstackbuild/pypi_source/requirements.txt
@@ -14,7 +14,7 @@ kombu==3.0.35
 librabbitmq==1.6.1
 MarkupSafe==0.23
 netaddr==0.7.14
-numpy==1.9.2
+numpy==1.21.0
 ordereddict==1.1
 paramiko==1.15.2
 pickleDB==0.3