diff --git a/RELEASING.md b/RELEASING.md
index da73f64170a..3a285662cb3 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -2,7 +2,7 @@
 
 ## Main Release
 
-Released on January 2nd, April 1st, July 1st and October 15th.
+Released quarterly on January 2nd, April 1st, July 1st and October 15th.
 
 * [ ] Open a release ticket e.g. https://github.com/python-pillow/Pillow/issues/3154
 * [ ] Develop and prepare release in `master` branch.