diff --git a/requirements.txt b/requirements.txt
index 4122cf1..05d625f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Django==2.2.5
 fpdf==1.7.2
-numpy==1.17.1
+numpy==1.22.0
 Pillow==6.1.0
 pydicom==1.3.0
 pynetdicom==1.4.1