diff --git a/gnowsys-ndf/docs/requirements.txt b/gnowsys-ndf/docs/requirements.txt
index 0895cd649..7168d413b 100644
--- a/gnowsys-ndf/docs/requirements.txt
+++ b/gnowsys-ndf/docs/requirements.txt
@@ -34,7 +34,7 @@ parso==0.7.1
 pathlib2==2.3.5
 pexpect==4.8.0
 pickleshare==0.7.5
-Pillow==8.1.0
+Pillow==9.3.0
 prompt-toolkit==3.0.10
 psycopg2==2.7.4
 ptyprocess==0.7.0