Minor - improve composer speed #2738

composer.json

@@ -95,20 +95,20 @@
         "media-alchemyst/media-alchemyst": "~0.5",
         "php-ffmpeg/php-ffmpeg": "0.5.1",
         "imagine/imagine": "0.6.3",
-        "jeroendesloovere/vcard": "^1.2",
+        "jeroendesloovere/vcard": "~1.7",
         "knplabs/doctrine-behaviors": "~1.1",
-        "jimmiw/php-time-ago": "^0.4.14",
-        "phpoffice/phpword": "^0.14",
+        "jimmiw/php-time-ago": "0.4.15",
+        "phpoffice/phpword": "~0.14",
         "facebook/php-sdk-v4": "~5.0",
         "kigkonsult/icalcreator": "2.24",
         "essence/essence": "2.6.1",
-        "chamilo/pclzip": "^2.8",
+        "chamilo/pclzip": "~2.8",
         "chamilo/chash": "0.1.1",
         "paragonie/random-lib": "2.0.0",
         "ocramius/proxy-manager": "~1.0|2.0.*",
-        "culqi/culqi-php": "v1.3.3",
-        "knplabs/knp-components": "^1.3",
-        "guzzlehttp/guzzle": "^6.0"
+        "culqi/culqi-php": "1.3.4",
+        "knplabs/knp-components": "~1.3",
+        "guzzlehttp/guzzle": "~6.0"
     },
     "require-dev": {
         "behat/behat": "@stable",