diff --git a/package.json b/package.json
index 473e9a5f08..136275510a 100644
--- a/package.json
+++ b/package.json
@@ -66,8 +66,8 @@
     "gemini-scrollbar": "github:matrix-org/gemini-scrollbar#91e1e566",
     "gfm.css": "^1.1.2",
     "highlight.js": "^9.13.1",
-    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
-    "matrix-react-sdk": "github:matrix-org/matrix-react-sdk#develop",
+    "matrix-js-sdk": "5.1.1-rc.1",
+    "matrix-react-sdk": "2.2.3-rc.1",
     "olm": "https://packages.matrix.org/npm/olm/olm-3.1.4.tgz",
     "postcss-easings": "^2.0.0",
     "prop-types": "^15.7.2",
diff --git a/yarn.lock b/yarn.lock
index 687980e4d3..a95ccff3d3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7497,9 +7497,10 @@ mathml-tag-names@^2.1.1:
   resolved "https://registry.yarnpkg.com/mathml-tag-names/-/mathml-tag-names-2.1.3.tgz#4ddadd67308e780cf16a47685878ee27b736a0a3"
   integrity sha512-APMBEanjybaPzUrfqU0IMU5I0AswKMH7k8OTLs0vvV4KZpExkTkY87nR/zpbuTPj+gARop7aGUbl11pnDfW6xg==
 
-"matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
-  version "5.1.0"
-  resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/bc53f8fdec7222b6ca44a63cafbc7ae8c4cc396f"
+matrix-js-sdk@5.1.1-rc.1:
+  version "5.1.1-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-5.1.1-rc.1.tgz#e3872696b8e6ec3fcae2d1ba1491e6a08d20954a"
+  integrity sha512-55F4jvJSVYJb5DDmso6Mld3HJ9v1UW0eT///SMcJtHVIJd5ZSLvsGV7rvMny7w6MHy5enfH4E2yItjjvlAL9dA==
   dependencies:
     "@babel/runtime" "^7.8.3"
     another-json "^0.2.0"
@@ -7519,9 +7520,10 @@ matrix-mock-request@^1.2.3:
     bluebird "^3.5.0"
     expect "^1.20.2"
 
-"matrix-react-sdk@github:matrix-org/matrix-react-sdk#develop":
-  version "2.2.1"
-  resolved "https://codeload.github.com/matrix-org/matrix-react-sdk/tar.gz/845656064e802054b3857c2a240aaaf88f94f740"
+matrix-react-sdk@2.2.3-rc.1:
+  version "2.2.3-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-react-sdk/-/matrix-react-sdk-2.2.3-rc.1.tgz#71ad42c54054130896a7f7db97e7c4148876abe9"
+  integrity sha512-k9L6QtAfbjyvUzTo5HJxhyiO5bSYo0MXhDpnImLnoOsu8I95AFGd/QuiTz919uhq8GrM2bpWTpV9LSkwQjET9Q==
   dependencies:
     "@babel/runtime" "^7.8.3"
     blueimp-canvas-to-blob "^3.5.0"
@@ -7549,7 +7551,7 @@ matrix-mock-request@^1.2.3:
     is-ip "^2.0.0"
     linkifyjs "^2.1.6"
     lodash "^4.17.14"
-    matrix-js-sdk "github:matrix-org/matrix-js-sdk#develop"
+    matrix-js-sdk "5.1.1-rc.1"
     minimist "^1.2.0"
     pako "^1.0.5"
     png-chunks-extract "^1.0.0"