diff --git a/composer.json b/composer.json
index c1c03a2..1228f07 100644
--- a/composer.json
+++ b/composer.json
@@ -17,9 +17,9 @@
         "php": ">=5.3.0"
     },
     "require-dev": {
-        "pda/pheanstalk": "2.1.0",
-        "iron-io/iron_mq": "1.4.5",
-        "predis/predis": ">=0.8"
+        "pda/pheanstalk": "~2.1",
+        "iron-io/iron_mq": "~1.4.5",
+        "predis/predis": "~0.8"
     },
     "autoload": {
         "psr-0": {"Eventio\\BBQ": "src/"}