diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a725465
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+vendor/
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 7cfeb8c..904dd7d 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,8 @@
   "name": "ed-itsolutions/wup-client",
   "description": "WordPress Update Provider client for use in plugins / themes.",
   "require": {
-    "php": "^5.3.3 || ^7.0"
+    "php": "^5.3.3 || ^7.0",
+    "composer/semver": "^1.4"
   },
   "license": "MIT",
   "authors": [
@@ -16,4 +17,4 @@
   "autoload": {
     "files": ["wup-client.php"]
   }
-}
\ No newline at end of file
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000..3f3aa86
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,82 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "505c37061316a34ee8b0db1cd5de8d89",
+    "packages": [
+        {
+            "name": "composer/semver",
+            "version": "1.4.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/composer/semver.git",
+                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/composer/semver/zipball/c7cb9a2095a074d131b65a8a0cd294479d785573",
+                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3.2 || ^7.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.5 || ^5.0.5",
+                "phpunit/phpunit-mock-objects": "2.3.0 || ^3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Composer\\Semver\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nils Adermann",
+                    "email": "naderman@naderman.de",
+                    "homepage": "http://www.naderman.de"
+                },
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                },
+                {
+                    "name": "Rob Bast",
+                    "email": "rob.bast@gmail.com",
+                    "homepage": "http://robbast.nl"
+                }
+            ],
+            "description": "Semver library that offers utilities, version constraint parsing and validation.",
+            "keywords": [
+                "semantic",
+                "semver",
+                "validation",
+                "versioning"
+            ],
+            "time": "2016-08-30T16:08:34+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {
+        "php": "^5.3.3 || ^7.0"
+    },
+    "platform-dev": []
+}
diff --git a/lib/wup-client.php b/lib/wup-client.php
index 3a00c4d..a56dcff 100644
--- a/lib/wup-client.php
+++ b/lib/wup-client.php
@@ -48,7 +48,7 @@ public function injectUpdate($updates){
       &&
       !empty($state->wupVersion)
       &&
-      $state->wupVersion != $state->localVersion
+      Composer\Semver\Comparator::greaterThan($state->wupVersion, $state->localVersion)
     ){
 			$updates->response[$this->updateResponseKey()] = $this->updateResponse($state);
     }