diff --git a/ratpack-site/ratpack-site.gradle b/ratpack-site/ratpack-site.gradle
index 05843505d..e381d680c 100644
--- a/ratpack-site/ratpack-site.gradle
+++ b/ratpack-site/ratpack-site.gradle
@@ -101,7 +101,9 @@ ext {
     "1.7.0", "1.7.1", "1.7.2", "1.7.3", "1.7.4", "1.7.5", "1.7.6",
     "1.8.0", "1.8.1", "1.8.2",
     "1.9.0-rc-1", "1.9.0-rc-2", "1.9.0",
-    "1.10.0-SNAPSHOT"
+    "1.10.0-SNAPSHOT",
+    "2.0.0-rc-1",
+    "2.0.0-SNAPSHOT"
   ]
 
   if (!isHeroku && !isCi) {