diff --git a/composer.json b/composer.json
index 3b9833a..83053f8 100644
--- a/composer.json
+++ b/composer.json
@@ -12,10 +12,10 @@
     "minimum-stability": "stable",
     "require": {
         "php": ">=5.3.2",
-        "symfony/process": ">=2.3"
+        "symfony/process": "~2.3"
     },
     "require-dev": {
-        "symfony/finder": ">=2.3"
+        "symfony/finder": "~2.3"
     },
     "autoload": {
         "psr-0": {