diff --git a/cs294/hw2/requirements.txt b/cs294/hw2/requirements.txt
old mode 100755
new mode 100644
index 765a0ac..11ec643
--- a/cs294/hw2/requirements.txt
+++ b/cs294/hw2/requirements.txt
@@ -1,6 +1,6 @@
 mujoco-py==1.50.1.56
 gym==0.10.5
 tensorflow==1.10.0
-numpy==1.14.5
+numpy==1.22.0
 seaborn
 Box2D==2.3.2