diff --git a/package.json b/package.json
index ecec502f63..679b47061d 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "is-ip": "^2.0.0",
     "linkifyjs": "^2.1.9",
     "lodash": "^4.17.19",
-    "matrix-js-sdk": "8.5.0",
+    "matrix-js-sdk": "9.0.0-rc.1",
     "matrix-widget-api": "^0.1.0-beta.5",
     "minimist": "^1.2.5",
     "pako": "^1.0.11",
diff --git a/yarn.lock b/yarn.lock
index 35944b8347..13a78d235c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6505,10 +6505,10 @@ mathml-tag-names@^2.0.1:
   resolved "https://registry.yarnpkg.com/mathml-tag-names/-/mathml-tag-names-2.1.3.tgz#4ddadd67308e780cf16a47685878ee27b736a0a3"
   integrity sha512-APMBEanjybaPzUrfqU0IMU5I0AswKMH7k8OTLs0vvV4KZpExkTkY87nR/zpbuTPj+gARop7aGUbl11pnDfW6xg==
 
-matrix-js-sdk@8.5.0:
-  version "8.5.0"
-  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-8.5.0.tgz#02d77e0e95fe32dcc74e0a94707f9103badfdca5"
-  integrity sha512-RJCqK/QkesL+63rX4C4mShEFw/ZR20D1UMw1RKY8pQhv1/7Skz+v5BTv/UCqG45E3rRYMarNOwy13CZ+yq33FA==
+matrix-js-sdk@9.0.0-rc.1:
+  version "9.0.0-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-9.0.0-rc.1.tgz#d74638244dcdcea26f8b73f56883f6f05b613e7e"
+  integrity sha512-FWY6q2ahF0oRTEMtld8T9z6eLyc6K/4x9MJxYysxvgAnIsAVQNj78MbTX3SCAawjfv4JpwdaSFn8o2ZyqpW4yw==
   dependencies:
     "@babel/runtime" "^7.11.2"
     another-json "^0.2.0"