diff --git a/composer.json b/composer.json
index d61617f..5d835c6 100644
--- a/composer.json
+++ b/composer.json
@@ -10,11 +10,11 @@
 		}
 	],
 	"require": {
-		"silverstripe/framework": ">=3.1.x-dev,<4.0"
+		"silverstripe/framework": ">=3.1.0-beta1,<4.0"
 	},
 	"require-dev": {
 		"hafriedlander/phockito": "*",
 		"silverstripe/subsites": "*",
-		"silverstripe/cms": ">=3.1.x-dev,<4.0"
+		"silverstripe/cms": ">=3.1.0-beta1,<4.0"
 	}
 }