diff --git a/pyproject.toml b/pyproject.toml
index 7e38bf5c50..9e1ffb0d8a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ jsonschema = "^3.2.0"
 keyring = "^22.0.1"
 log4mongo = "^1.7"
 pathlib2= "^2.3.5" # deadline submit publish job only (single place, maybe not needed?)
-Pillow = "^9.0" # only used for slates prototype
+Pillow = "^9.0" # used in TVPaint and for slates
 pyblish-base = "^1.8.8"
 pynput = "^1.7.2" # idle manager in tray
 pymongo = "^3.11.2"