diff --git a/package.json b/package.json
index 323fe41473..f1727d9be3 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "gfm.css": "^1.1.2",
     "jsrsasign": "^10.5.25",
     "katex": "^0.12.0",
-    "matrix-js-sdk": "19.0.0",
+    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
     "matrix-react-sdk": "3.48.0",
     "matrix-widget-api": "^0.1.0-beta.18",
     "prop-types": "^15.7.2",
diff --git a/yarn.lock b/yarn.lock
index 64158dd52b..6a27f60c43 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8392,6 +8392,22 @@ matrix-js-sdk@19.0.0:
     request "^2.88.2"
     unhomoglyph "^1.0.6"
 
+"matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
+  version "19.0.0"
+  resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/85a96c6467c24b031ee25d5fbb8d9fe62edbbe49"
+  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"
+    matrix-events-sdk "^0.0.1-beta.7"
+    p-retry "^4.5.0"
+    qs "^6.9.6"
+    request "^2.88.2"
+    unhomoglyph "^1.0.6"
+
 matrix-mock-request@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/matrix-mock-request/-/matrix-mock-request-2.0.0.tgz#653c258eb3b6dfbf6a48418e8633a377c82de3ab"