diff --git a/composer.json b/composer.json
index 57b55fd..cc86f9c 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
 		"issues": "http://github.com/ajshort/silverstripe-gridfieldextensions/issues"
 	},
 	"require": {
-		"silverstripe/framework": ">=3.1"
+		"silverstripe/framework": "~3.1"
 	},
 	"extra": {
 		"installer-name": "gridfieldextensions",