diff --git a/README.md b/README.md
index 9810181..ffcf12e 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ the [Semantic MediaWiki][smw] code base and is now being deployed as independent
 
 ## Requirements
 
-PHP 5.6 or later
+PHP 5.6.99 or later
 
 ## Installation
 
@@ -32,6 +32,7 @@ The message reporter specifies `MessageReporter` and `MessageReporterAware` as a
 - `ObservableMessageReporter`
 - `NullMessageReporter`
 - `SpyMessageReporter`
+- `CallbackMessageReporter`
 
 ```php
 use Onoi\MessageReporter\MessageReporterFactory;
@@ -112,7 +113,7 @@ You can also invoke PHPUnit directly to pass it arguments, as follows
 
 ## Release notes
 
-* 1.4.0 (2019-04-07)
+* 1.4.0 (2019-04-08)
   - Added `CallbackMessageReporter`
   - Changed minimum PHP version to 5.6.99
 
diff --git a/composer.json b/composer.json
index a6ab1ec..f7fdea2 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,8 @@
 	"type": "library",
 	"description": "An interface to report and relay arbitrary messages to registered handlers",
 	"keywords": [
-		"messages"
+		"messages",
+		"reporter"
 	],
 	"homepage": "https://github.com/onoi/message-reporter",
 	"license": "GPL-2.0-or-later",