diff --git a/package.json b/package.json
index a45e2e1d37..bf2756bafc 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "gfm.css": "^1.1.2",
     "jsrsasign": "^10.2.0",
     "katex": "^0.12.0",
-    "matrix-js-sdk": "15.1.1",
+    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
     "matrix-react-sdk": "3.35.1",
     "matrix-widget-api": "^0.1.0-beta.17",
     "prop-types": "^15.7.2",
diff --git a/yarn.lock b/yarn.lock
index b673a4fba4..b72a5bd98a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7870,6 +7870,21 @@ matrix-js-sdk@15.1.1:
     request "^2.88.2"
     unhomoglyph "^1.0.6"
 
+"matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
+  version "15.1.1"
+  resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/55b489b17a519bc0d557c47ac9fe7ce54690b602"
+  dependencies:
+    "@babel/runtime" "^7.12.5"
+    another-json "^0.2.0"
+    browser-request "^0.3.3"
+    bs58 "^4.0.1"
+    content-type "^1.0.4"
+    loglevel "^1.7.1"
+    p-retry "^4.5.0"
+    qs "^6.9.6"
+    request "^2.88.2"
+    unhomoglyph "^1.0.6"
+
 matrix-mock-request@^1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/matrix-mock-request/-/matrix-mock-request-1.2.3.tgz#56b15d86e2601a9b48a854844396d18caab649c8"