diff --git a/package.json b/package.json
index 81e61c8ab..1c264aea2 100644
--- a/package.json
+++ b/package.json
@@ -75,7 +75,7 @@
         "jsrsasign": "^10.5.25",
         "katex": "^0.16.0",
         "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
-        "matrix-react-sdk": "github:matrix-org/matrix-react-sdk#develop",
+        "matrix-react-sdk": "3.78.0-rc.1",
         "matrix-widget-api": "^1.3.1",
         "react": "17.0.2",
         "react-dom": "17.0.2",
diff --git a/yarn.lock b/yarn.lock
index 2deac501a..8239a7ced 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8467,6 +8467,26 @@ matrix-events-sdk@0.0.1:
   resolved "https://registry.yarnpkg.com/matrix-events-sdk/-/matrix-events-sdk-0.0.1.tgz#c8c38911e2cb29023b0bbac8d6f32e0de2c957dd"
   integrity sha512-1QEOsXO+bhyCroIe2/A5OwaxHvBm7EsSQ46DEDn8RBIfQwN5HWBpFvyWWR4QY0KHPPnnJdI99wgRiAl7Ad5qaA==
 
+matrix-js-sdk@27.2.0-rc.1:
+  version "27.2.0-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-27.2.0-rc.1.tgz#905bf31389081d3a48f6ae20cf0b46f3b80a764d"
+  integrity sha512-PoeCC3AguIWGgkxjzKDwQT9s1ZdKMbpHGenx1FNMgOCv4Ldvu2CLcdbSkn8y34flYNQ+GGO9QJ4bh6RhGsHCLQ==
+  dependencies:
+    "@babel/runtime" "^7.12.5"
+    "@matrix-org/matrix-sdk-crypto-wasm" "^1.2.0"
+    another-json "^0.2.0"
+    bs58 "^5.0.0"
+    content-type "^1.0.4"
+    jwt-decode "^3.1.2"
+    loglevel "^1.7.1"
+    matrix-events-sdk "0.0.1"
+    matrix-widget-api "^1.5.0"
+    oidc-client-ts "^2.2.4"
+    p-retry "4"
+    sdp-transform "^2.14.1"
+    unhomoglyph "^1.0.6"
+    uuid "9"
+
 "matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
   version "27.1.0"
   resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/2ef7ae7661b9ac036f50819efd2ae2a72ae61b4d"
@@ -8493,9 +8513,10 @@ matrix-mock-request@^2.5.0:
   dependencies:
     expect "^28.1.0"
 
-"matrix-react-sdk@github:matrix-org/matrix-react-sdk#develop":
-  version "3.77.1"
-  resolved "https://codeload.github.com/matrix-org/matrix-react-sdk/tar.gz/f0d58d25dcddfbfe0eaae608fca228fc507748ae"
+matrix-react-sdk@3.78.0-rc.1:
+  version "3.78.0-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-react-sdk/-/matrix-react-sdk-3.78.0-rc.1.tgz#36316f377f9c303d7cdbac6d8f459b58a638053a"
+  integrity sha512-d53qQyVW19NWKnrA3I0L6q1YJpfPN2afmXHI+LwT7lnKVJEBU01LRu9frtMwd5GciphHgz5KSz8ut+W5vdTnUA==
   dependencies:
     "@babel/runtime" "^7.12.5"
     "@matrix-org/analytics-events" "^0.6.0"
@@ -8536,7 +8557,7 @@ matrix-mock-request@^2.5.0:
     maplibre-gl "^2.0.0"
     matrix-encrypt-attachment "^1.0.3"
     matrix-events-sdk "0.0.1"
-    matrix-js-sdk "github:matrix-org/matrix-js-sdk#develop"
+    matrix-js-sdk "27.2.0-rc.1"
     matrix-widget-api "^1.5.0"
     memoize-one "^6.0.0"
     minimist "^1.2.5"