diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3d1a3b..1f4a366 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.21.0
+* refactor `deferredRemovals` to not rely on entity indexes
+
+
 # 0.20.0
 * add `getEntityById(world, id)` and `getEntityId(world, entity)` functions
 
diff --git a/package.json b/package.json
index f20cf44..4d210c2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ecs",
-  "version": "0.20.0",
+  "version": "0.21.0",
   "description": "data oriented, functional entity component system",
   "main": "ecs.js",
   "types": "types/ecs.d.ts",