diff --git a/backend/Yiqi/Yiqi/requirements.txt b/backend/Yiqi/Yiqi/requirements.txt
index 2971ec8..4fccafc 100644
--- a/backend/Yiqi/Yiqi/requirements.txt
+++ b/backend/Yiqi/Yiqi/requirements.txt
@@ -85,7 +85,7 @@ pathtools==0.1.2
 pbr==3.1.1
 pexpect==4.3.1
 pickleshare==0.7.4
-Pillow==4.3.0
+Pillow==8.2.0
 pluggy==0.6.0
 prettytable==0.7.2
 project==20