diff --git a/requirements.txt b/requirements.txt
index 92ae748..4549959 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ pandocfilters==1.4.2
 parso==0.3.1
 pexpect==4.6.0
 pickleshare==0.7.5
-Pillow==5.3.0
+Pillow==9.0.1
 pkg-resources==0.0.0
 ply==3.11
 prometheus-client==0.4.2