diff --git a/README.md b/README.md
index e87b79a..b296cbf 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Included are:
 Take a look at the [Notes](#notes) and [TODOs](#todo).
 
 ## Requirments
-* SilverStripe 3.0
+* SilverStripe 3.1
 
 ## Installation
 * Download and copy module in SilverStripe root directory and name it whatever you want
diff --git a/composer.json b/composer.json
index 16f4851..8fc0e6d 100644
--- a/composer.json
+++ b/composer.json
@@ -15,6 +15,6 @@
     "url": "git@github.com:colymba/GridFieldBulkEditingTools.git"
   }],
 	"require": {
-    "silverstripe/cms": "3.*"
+    "silverstripe/cms": ">=3.1"
 	}
 }
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