diff --git a/requirements.txt b/requirements.txt
index 05a6ae3..8da2c04 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ opencv_python==3.2.0.7
 matplotlib==2.0.2
 keras==2.1.5
 captcha==0.2.4
-Pillow==5.1.0
+Pillow==9.0.1
 pandas==0.23.0
 tqdm==4.24.0