diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b26000f..49068c3f 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.
 
+### [28.8.4](https://github.com/renovatebot/github-action/compare/v28.8.3...v28.8.4) (2021-10-22)
+
+
+### Bug Fixes
+
+* **deps:** update renovate/renovate docker tag to v28.8.4 ([10505a1](https://github.com/renovatebot/github-action/commit/10505a1143d6ed5266239bab542f7ca4b59069bc))
+
 ### [28.8.3](https://github.com/renovatebot/github-action/compare/v28.8.2...v28.8.3) (2021-10-22)
 
 
diff --git a/dist/index.js b/dist/index.js
index dfc27ab0..5aa4efe0 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -2832,7 +2832,7 @@ class Docker {
     constructor() {
         this.repository = 'renovate/renovate';
         // renovate: datasource=docker depName=renovate/renovate versioning=docker
-        this.tag = '28.8.3-slim';
+        this.tag = '28.8.4-slim';
         this.tagSuffix = '-slim';
     }
     image() {
diff --git a/package.json b/package.json
index 095dddfe..a38041f4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "github-action",
-  "version": "28.8.3",
+  "version": "28.8.4",
   "description": "GitHub Action to run Renovate self-hosted.",
   "private": true,
   "main": "src/index.ts",