diff --git a/package.json b/package.json
index 03da1d0e6e..31c8614b8f 100644
--- a/package.json
+++ b/package.json
@@ -65,8 +65,8 @@
     "gemini-scrollbar": "github:matrix-org/gemini-scrollbar#91e1e566",
     "gfm.css": "^1.1.2",
     "highlight.js": "^9.13.1",
-    "matrix-js-sdk": "4.0.0",
-    "matrix-react-sdk": "2.0.0",
+    "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-3.1.4.tgz",
     "postcss-easings": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 9501fb60e1..2bf544ae07 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7542,10 +7542,9 @@ mathml-tag-names@^2.1.1:
   resolved "https://registry.yarnpkg.com/mathml-tag-names/-/mathml-tag-names-2.1.1.tgz#6dff66c99d55ecf739ca53c492e626f1d12a33cc"
   integrity sha512-pWB896KPGSGkp1XtyzRBftpTzwSOL0Gfk0wLvxt4f2mgzjY19o0LxJ3U25vNWTzsh7da+KTbuXQoQ3lOJZ8WHw==
 
-matrix-js-sdk@4.0.0:
+"matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
   version "4.0.0"
-  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-4.0.0.tgz#c81bdc905af2ab1634527e5f542f2f15977d31cf"
-  integrity sha512-Xbe36xL443qtEBH4xk0k39JabolqZfloK7fwYGMb/PgWO26VOzvw94XWahnIr5w83oxBAF9nFmP+7EnPG6IHnA==
+  resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/21e4c597d9633aef606871cf9ffffaf039142be3"
   dependencies:
     "@babel/runtime" "^7.8.3"
     another-json "^0.2.0"
@@ -7565,10 +7564,9 @@ matrix-mock-request@^1.2.3:
     bluebird "^3.5.0"
     expect "^1.20.2"
 
-matrix-react-sdk@2.0.0:
+"matrix-react-sdk@github:matrix-org/matrix-react-sdk#develop":
   version "2.0.0"
-  resolved "https://registry.yarnpkg.com/matrix-react-sdk/-/matrix-react-sdk-2.0.0.tgz#43f90a2b5346bcf288867f40ee83de9e1fa67b6d"
-  integrity sha512-/ucs950t+Q2O+/QTej7aXA36hi8lVBM12T8NciSmMFYIuKn8+1yL/tQjomZGTxmsVq2U8188X6CGCuwPrZzmGg==
+  resolved "https://codeload.github.com/matrix-org/matrix-react-sdk/tar.gz/805e9abb3981584cd941e59c5c10edc3595c38b9"
   dependencies:
     "@babel/runtime" "^7.8.3"
     blueimp-canvas-to-blob "^3.5.0"
@@ -7596,7 +7594,7 @@ matrix-react-sdk@2.0.0:
     is-ip "^2.0.0"
     linkifyjs "^2.1.6"
     lodash "^4.17.14"
-    matrix-js-sdk "4.0.0"
+    matrix-js-sdk "github:matrix-org/matrix-js-sdk#develop"
     pako "^1.0.5"
     png-chunks-extract "^1.0.0"
     prop-types "^15.5.8"