diff --git a/evasys/requirements.txt b/evasys/requirements.txt
index 9704305..4bc74aa 100644
--- a/evasys/requirements.txt
+++ b/evasys/requirements.txt
@@ -15,7 +15,7 @@ matplotlib==3.0.3
 mpmath==1.1.0
 numpy==1.16.2
 pandas==0.24.2
-Pillow==6.0.0
+Pillow==9.0.1
 pyecharts==0.5.11
 pyecharts-javascripthon==0.0.6
 pyecharts-jupyter-installer==0.0.3