diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a62dafc..7893c871 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [24.21.0](https://github.com/renovatebot/github-action/compare/v24.19.0...v24.21.0) (2021-01-17)
+
+
+### Bug Fixes
+
+* **deps:** update renovate/renovate docker tag to v24.21.0 ([#494](https://github.com/renovatebot/github-action/issues/494)) ([0e409c4](https://github.com/renovatebot/github-action/commit/0e409c47b793fb1207f44444a62f7bd988baaf13))
+
 ## [24.19.0](https://github.com/renovatebot/github-action/compare/v24.18.0...v24.19.0) (2021-01-16)
 
 
diff --git a/dist/index.js b/dist/index.js
index 568e779d..44fe8579 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1123,7 +1123,7 @@ class Docker {
     constructor() {
         this.repository = 'renovate/renovate';
         // renovate: datasource=docker depName=renovate/renovate versioning=docker
-        this.tag = '24.19.0-slim';
+        this.tag = '24.21.0-slim';
         this.tagSuffix = '-slim';
     }
     image() {
diff --git a/package-lock.json b/package-lock.json
index af3e30b6..8ff808af 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "github-action",
-  "version": "24.19.0",
+  "version": "24.21.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index e8e43763..0491427d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "github-action",
-  "version": "24.19.0",
+  "version": "24.21.0",
   "description": "GitHub Action to run Renovate self-hosted.",
   "private": true,
   "main": "src/index.ts",