diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7e2efd3..8f1cf76 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -11,7 +11,7 @@ termcolor
 yacs
 tabulate
 cloudpickle
-Pillow==6.2.2
+Pillow==9.0.0
 future
 requests
 six