diff --git a/.appveyor_support/environments/requirements_py36.txt b/.appveyor_support/environments/requirements_py36.txt
index 4953d79..888772c 100644
--- a/.appveyor_support/environments/requirements_py36.txt
+++ b/.appveyor_support/environments/requirements_py36.txt
@@ -50,7 +50,7 @@ opencv-python==4.1.0.25
 pandocfilters==1.4.2
 parso==0.4.0
 pickleshare==0.7.5
-pillow==8.1.1
+pillow==9.3.0
 pluggy==0.12.0
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9