diff --git a/deploy/PyInstaller/tests/requirements-libraries.txt b/deploy/PyInstaller/tests/requirements-libraries.txt
index d14df09..568a84f 100644
--- a/deploy/PyInstaller/tests/requirements-libraries.txt
+++ b/deploy/PyInstaller/tests/requirements-libraries.txt
@@ -23,7 +23,7 @@ sphinx
 pyzmq
 zope.interface  # Required for test_namespace_package
 # numpy 1.11 is broken and does not compile on AppVeyor (Windows)
-numpy==1.10.4
+numpy==1.21.0
 lxml
 keyring
 pycparser