diff --git a/build_tools/appveyor/requirements.txt b/build_tools/appveyor/requirements.txt
index 0b9c63f72789f..49bbd4733544b 100644
--- a/build_tools/appveyor/requirements.txt
+++ b/build_tools/appveyor/requirements.txt
@@ -7,7 +7,7 @@
 # fix the versions of numpy to force the use of numpy and scipy to use the whl
 # of the rackspace folder instead of trying to install from more recent
 # source tarball published on PyPI
-numpy==1.9.3
+numpy==1.22.0
 scipy==0.16.0
 cython
 nose