diff --git a/assignment1/requirements.txt b/assignment1/requirements.txt
index 3005240..4054c05 100644
--- 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==6.2.0
+Pillow==9.0.0
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9
 ptyprocess==0.6.0