diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1e4fab0b7..1e84de7d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CodeQL Action Changelog
 
+## [UNRELEASED]
+
+No user facing changes.
+
 ## 2.1.20 - 22 Aug 2022
 
 No user facing changes.
diff --git a/package-lock.json b/package-lock.json
index 1b253ab58..511aac768 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "codeql",
-  "version": "2.1.20",
+  "version": "2.1.21",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "codeql",
-      "version": "2.1.20",
+      "version": "2.1.21",
       "license": "MIT",
       "dependencies": {
         "@actions/artifact": "^1.0.0",
diff --git a/package.json b/package.json
index 933262190..d39a59079 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "codeql",
-  "version": "2.1.20",
+  "version": "2.1.21",
   "private": true,
   "description": "CodeQL action",
   "scripts": {