Update composer.json

GrahamCampbell · GrahamCampbell · commit 876cbecf71b9 · 2014-06-13T16:33:36.000+01:00
diff --git a/composer.json b/composer.json
@@ -19,10 +19,10 @@
     "require": {
         "php":             ">=5.3.2",
         "ext-curl":        "*",
-        "guzzle/guzzle":   ">=3.7"
+        "guzzle/guzzle":   "~3.7"
     },
     "require-dev": {
-        "phpunit/phpunit": ">=3.7"
+        "phpunit/phpunit": "~4.0"
     },
     "suggest": {
         "knplabs/gaufrette": "Needed for optional Gaufrette cache"
