diff --git a/package.json b/package.json
index 9ecf2836b2..d02ef7b002 100644
--- a/package.json
+++ b/package.json
@@ -68,8 +68,8 @@
     "gfm.css": "^1.1.1",
     "highlight.js": "^9.0.0",
     "linkifyjs": "^2.1.3",
-    "matrix-js-sdk": "0.9.2",
-    "matrix-react-sdk": "0.11.4",
+    "matrix-js-sdk": "0.10.0-rc.1",
+    "matrix-react-sdk": "0.12.0-rc.1",
     "modernizr": "^3.1.0",
     "pako": "^1.0.5",
     "prop-types": "^15.5.10",