diff --git a/package.json b/package.json
index 2fd45a5eb3..fc26523878 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "gemini-scrollbar": "github:matrix-org/gemini-scrollbar#91e1e566",
     "gfm.css": "^1.1.2",
     "highlight.js": "^9.13.1",
-    "matrix-js-sdk": "5.1.1",
+    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
     "matrix-react-sdk": "2.2.3",
     "olm": "https://packages.matrix.org/npm/olm/olm-3.1.4.tgz",
     "postcss-easings": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index a1c4b6aa40..c07776c991 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7469,6 +7469,20 @@ matrix-js-sdk@5.1.1:
     request "^2.88.0"
     unhomoglyph "^1.0.2"
 
+"matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
+  version "5.1.1"
+  resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/b2e154377a4268441a3b27b183dd7f7018187035"
+  dependencies:
+    "@babel/runtime" "^7.8.3"
+    another-json "^0.2.0"
+    browser-request "^0.3.3"
+    bs58 "^4.0.1"
+    content-type "^1.0.2"
+    loglevel "^1.6.4"
+    qs "^6.5.2"
+    request "^2.88.0"
+    unhomoglyph "^1.0.2"
+
 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"