diff --git a/composer.lock b/composer.lock
index 688a64232..0d7be4688 100644
--- a/composer.lock
+++ b/composer.lock
@@ -64,16 +64,16 @@
         },
         {
             "name": "composer/semver",
-            "version": "1.4.0",
+            "version": "1.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/semver.git",
-                "reference": "84c47f3d8901440403217afc120683c7385aecb8"
+                "reference": "03c9de5aa25e7672c4ad251eeaba0c47a06c8b98"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/semver/zipball/84c47f3d8901440403217afc120683c7385aecb8",
-                "reference": "84c47f3d8901440403217afc120683c7385aecb8",
+                "url": "https://api.github.com/repos/composer/semver/zipball/03c9de5aa25e7672c4ad251eeaba0c47a06c8b98",
+                "reference": "03c9de5aa25e7672c4ad251eeaba0c47a06c8b98",
                 "shasum": ""
             },
             "require": {
@@ -122,7 +122,7 @@
                 "validation",
                 "versioning"
             ],
-            "time": "2016-03-30 13:16:03"
+            "time": "2016-06-02 09:04:51"
         },
         {
             "name": "composer/spdx-licenses",