diff --git a/Changelog.md b/Changelog.md
index 36a4fe5c8d4..4a1f5538121 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,8 +1,14 @@
 # Motoko compiler changelog
 
+## 0.6.20 (2022-01-11)
+
 * motoko
 
-  * Implement support for `heartbeat` system methods (thanks to Paul Liu) (#2971)
+  * Implement support for `heartbeat` system methods (thanks to ninegua) (#2971)
+
+* motoko-base
+
+  * Add `Iter.filter : <A>(Iter<A>, A -> Bool) -> Iter<A>` (thanks to jzxchiang1) (#328).
 
 ## 0.6.19 (2022-01-05)