diff --git a/README.md b/README.md
index 3ee1d13..477152e 100644
--- a/README.md
+++ b/README.md
@@ -163,9 +163,12 @@ readme: {
 ```
 
 ## Release History
+### 1.4.2
+- Fixes a bug where the stable version would not be updated in README.md when running the update-version task.
+
 ### 1.4.1
 - Fixes a bug where the initializer regex in the update version config would never match.
-- The update-version tasks now accepts both strings and regexes in `options.regEx`.
+- The update-version task now accepts both strings and regexes in `options.regEx`.
 
 ### 1.4.0
 - Add .min as possible extension in rtlcss.
diff --git a/config/update-version.js b/config/update-version.js
index 43dff79..15f6342 100644
--- a/config/update-version.js
+++ b/config/update-version.js
@@ -12,6 +12,14 @@ module.exports = {
 		},
 		src: "readme.txt",
 	},
+	readmeMd: {
+		options: {
+			regEx: /(Stable tag:\s+)(\d+(\.\d+){0,3})([^\n^\.\d]?.*?)(\n)/,
+			preVersionMatch: "$1",
+			postVersionMatch: "$5",
+		},
+		src: "README.md",
+	},
 
 	// When changing or adding entries, make sure to update `aliases.yml` for "update-version-trunk".
 	pluginFile: {
diff --git a/package.json b/package.json
index f229e37..8d73f0b 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "@yoast/grunt-plugin-tasks",
 	"description": "Custom Yoast grunt tasks",
-	"version": "1.4.1",
+	"version": "1.4.2",
 	"homepage": "https://github.com/Yoast/",
 	"repository": {
 		"type": "git",