diff --git a/composer.json b/composer.json
index 9fe744c..ac2df07 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
 	],
 	"require":
 	{
-		"silverstripe/framework": "3.*",
-		"silverstripe/cms": "3.*"
+		"silverstripe/framework": "~3.1",
+		"silverstripe/cms": "~3.1"
 	}
 }
\ No newline at end of file