diff --git a/composer.json b/composer.json
index 0ec29b1..bbd2081 100644
--- a/composer.json
+++ b/composer.json
@@ -21,6 +21,9 @@
 		"php"                          : ">=5.3",
 		"pimple/pimple"                : "~2.0"
 	},
+	"suggest": {
+		"rarst/update-blocker": "Prevents invalid updates from official repositories"
+	},
 	"autoload"    : {
 		"classmap": ["php/"]
 	}
diff --git a/php/class-plugin.php b/php/class-plugin.php
index 4d492fb..173d78f 100644
--- a/php/class-plugin.php
+++ b/php/class-plugin.php
@@ -15,6 +15,7 @@ class Plugin extends \Pimple {
 	public function run() {
 
 		add_action( 'init', array( $this, 'init' ) );
+		add_filter( 'update_blocker_blocked', array( $this, 'update_blocker_blocked' ) );
 	}
 
 	/**
@@ -34,6 +35,20 @@ public function init() {
 		}
 	}
 
+	/**
+	 * @see https://github.com/Rarst/update-blocker
+	 *
+	 * @param array $blocked
+	 *
+	 * @return array
+	 */
+	public function update_blocker_blocked( $blocked ) {
+
+		$blocked['plugins'][] = plugin_basename( dirname( __DIR__ ) . '/fragment-cache.php' );
+
+		return $blocked;
+	}
+
 	/**
 	 * Add (or override) cache handler and enable it.
 	 *
diff --git a/readme.md b/readme.md
index 1aaf846..6a5fa94 100644
--- a/readme.md
+++ b/readme.md
@@ -46,6 +46,10 @@ add_filter( 'fc_skip_cache', function ( $skip, $type, $name, $args, $salt ) {
 
 # Changelog
 
+## 1.2
+
+ - added [Update Blocker](https://github.com/Rarst/update-blocker) support
+
 ## 1.1
 
  - anonymized fragment generation in front end for consistency