diff --git a/CHANGELOG.md b/CHANGELOG.md
index e863fe1cb2310d8f8665fac7733b4b01fe7e38f1..90cf9d9a25c86b3d4b75b78239cffbec24bdf8a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+# Version 1.21 (not yet released)
+
 # Version 1.20
 
 * ContactInGroup filter only supports IN/NOT IN so map =/!= !65