diff --git a/assignment2/requirements.txt b/assignment2/requirements.txt
index a8a757c..80ddeb2 100644
--- a/assignment2/requirements.txt
+++ b/assignment2/requirements.txt
@@ -9,7 +9,7 @@ ipython==2.3.1
 matplotlib==1.4.2
 mock==1.0.1
 nose==1.3.4
-numpy==1.9.1
+numpy==1.21.0
 pyparsing==2.0.3
 python-dateutil==2.4.0
 pytz==2014.10