diff --git a/HW4/requirements.txt b/HW4/requirements.txt
index c3795a1..a23cd71 100644
--- a/HW4/requirements.txt
+++ b/HW4/requirements.txt
@@ -21,7 +21,7 @@ nbconvert==5.2.1
 nbformat==4.3.0
 networkx==1.11
 notebook==5.0.0
-numpy==1.13.1
+numpy==1.22.0
 olefile==0.44
 pandocfilters==1.4.1
 pexpect==4.2.1