diff --git a/changelogs/CHANGELOG_alpha.md b/changelogs/CHANGELOG_alpha.md
index e4357917..d1858fdc 100644
--- a/changelogs/CHANGELOG_alpha.md
+++ b/changelogs/CHANGELOG_alpha.md
@@ -1,3 +1,10 @@
+# [5.3.0-alpha.21](https://github.com/parse-community/parse-server/compare/5.3.0-alpha.20...5.3.0-alpha.21) (2022-08-05)
+
+
+### Bug Fixes
+
+* internal indices for classes `_Idempotency` and `_Role` are not protected in defined schema ([#8121](https://github.com/parse-community/parse-server/issues/8121)) ([c16f529](https://github.com/parse-community/parse-server/commit/c16f529f74f92154401bf662f634b3c5fa45e18e))
+
 # [5.3.0-alpha.20](https://github.com/parse-community/parse-server/compare/5.3.0-alpha.19...5.3.0-alpha.20) (2022-07-22)
 
 
diff --git a/package-lock.json b/package-lock.json
index 1296c2cd..a01eca77 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "parse-server",
-  "version": "5.3.0-alpha.20",
+  "version": "5.3.0-alpha.21",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 5712ff45..67d38ce6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "parse-server",
-  "version": "5.3.0-alpha.20",
+  "version": "5.3.0-alpha.21",
   "description": "An express module providing a Parse-compatible API server",
   "main": "lib/index.js",
   "repository": {