diff --git a/assignment1/requirements.txt b/assignment1/requirements.txt
old mode 100755
new mode 100644
index 4d9577c..bfa97e5
--- a/assignment1/requirements.txt
+++ b/assignment1/requirements.txt
@@ -38,7 +38,7 @@ pandocfilters==1.4.2
 parso==0.3.4
 pexpect==4.6.0
 pickleshare==0.7.5
-Pillow==6.0.0
+Pillow==9.3.0
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9
 ptyprocess==0.6.0