diff --git a/composer.json b/composer.json
index 372663d..34008bd 100644
--- a/composer.json
+++ b/composer.json
@@ -11,6 +11,6 @@
 	],
 	"require":
 	{
-		"silverstripe/framework": "3.1.*"
+		"silverstripe/framework": ">=3.1.x-dev,<4.0"
 	}
 }