diff --git a/package.json b/package.json
index 4c121d076..ea37c9f03 100644
--- a/package.json
+++ b/package.json
@@ -74,8 +74,8 @@
     "gemini-scrollbar": "github:matrix-org/gemini-scrollbar#91e1e566",
     "gfm.css": "^1.1.2",
     "highlight.js": "^9.13.1",
-    "matrix-js-sdk": "2.4.0",
-    "matrix-react-sdk": "1.6.0",
+    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
+    "matrix-react-sdk": "github:matrix-org/matrix-react-sdk#develop",
     "modernizr": "^3.6.0",
     "olm": "https://packages.matrix.org/npm/olm/olm-3.1.0.tgz",
     "prop-types": "^15.7.2",
diff --git a/yarn.lock b/yarn.lock
index ab06b8c28..30fed2c06 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5815,10 +5815,9 @@ math-random@^1.0.1:
   resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.4.tgz#5dd6943c938548267016d4e34f057583080c514c"
   integrity sha512-rUxjysqif/BZQH2yhd5Aaq7vXMSx9NdEsQcyA07uEzIvxgI7zIr33gGsh+RU0/XjmQpCW7RsVof1vlkvQVCK5A==
 
-matrix-js-sdk@2.4.0:
+"matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
   version "2.4.0"
-  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-2.4.0.tgz#cce30af79fac9ec176695afc9affa2fff377e0e3"
-  integrity sha512-X0sdegRum7hzNXBT/vfxF05BiaXeZ8nZE3lO4hvE2UnnSqjDJLFM79muWuv6a0xrITcV4C8kKW7sH+oJb4d93Q==
+  resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/562bf9331bd5ee8701625cd9632c8e73374b18f4"
   dependencies:
     another-json "^0.2.0"
     babel-runtime "^6.26.0"
@@ -5839,10 +5838,9 @@ matrix-mock-request@^1.2.3:
     bluebird "^3.5.0"
     expect "^1.20.2"
 
-matrix-react-sdk@1.6.0:
+"matrix-react-sdk@github:matrix-org/matrix-react-sdk#develop":
   version "1.6.0"
-  resolved "https://registry.yarnpkg.com/matrix-react-sdk/-/matrix-react-sdk-1.6.0.tgz#0e5b9a2a699602823a609b5684749cf2ff2bab38"
-  integrity sha512-w23R0BIOr1ovQzFZryiCk3NKVHbA3/8MGPdTHOr+pZkj83N9ijp9DmFwmiY+T/O7dlLAO/E1Kn5uqzHGETkszg==
+  resolved "https://codeload.github.com/matrix-org/matrix-react-sdk/tar.gz/9221dcd1544b9cb540971dee5ea260372e873fbf"
   dependencies:
     babel-plugin-syntax-dynamic-import "^6.18.0"
     babel-runtime "^6.26.0"
@@ -5873,7 +5871,7 @@ matrix-react-sdk@1.6.0:
     linkifyjs "^2.1.6"
     lodash "^4.17.14"
     lolex "4.2"
-    matrix-js-sdk "2.4.0"
+    matrix-js-sdk "github:matrix-org/matrix-js-sdk#develop"
     optimist "^0.6.1"
     pako "^1.0.5"
     png-chunks-extract "^1.0.0"