diff --git a/docs/requirements.txt b/docs/requirements.txt
index 3221456..13a3d13 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 numpy==1.15.1
-Pillow==5.3.0
+Pillow==9.3.0
 scipy==1.1.0
 tensorflow-gpu==1.11.0
 wget==3.2