diff --git a/package.json b/package.json
index 7cf8bc049..b243a78ad 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "gfm.css": "^1.1.2",
     "jsrsasign": "^10.2.0",
     "katex": "^0.12.0",
-    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
+    "matrix-js-sdk": "15.2.0-rc.1",
     "matrix-react-sdk": "github:matrix-org/matrix-react-sdk#develop",
     "matrix-widget-api": "^0.1.0-beta.17",
     "prop-types": "^15.7.2",
diff --git a/yarn.lock b/yarn.lock
index d0bb8c669..7d3f3e731 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7854,6 +7854,22 @@ mathml-tag-names@^2.1.3:
   resolved "https://registry.yarnpkg.com/mathml-tag-names/-/mathml-tag-names-2.1.3.tgz#4ddadd67308e780cf16a47685878ee27b736a0a3"
   integrity sha512-APMBEanjybaPzUrfqU0IMU5I0AswKMH7k8OTLs0vvV4KZpExkTkY87nR/zpbuTPj+gARop7aGUbl11pnDfW6xg==
 
+matrix-js-sdk@15.2.0-rc.1:
+  version "15.2.0-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-15.2.0-rc.1.tgz#f88a75d547105e6e2ca82da245ed8ea647b3b755"
+  integrity sha512-4Jcm/CwYZST0nW6+yX+Xm8zb5IKoeTt/3Ek6As92SNN96Oz8jJcwrgg7XBslOTIEuKAokYIBYzcDfksz9HyslA==
+  dependencies:
+    "@babel/runtime" "^7.12.5"
+    another-json "^0.2.0"
+    browser-request "^0.3.3"
+    bs58 "^4.0.1"
+    content-type "^1.0.4"
+    loglevel "^1.7.1"
+    p-retry "^4.5.0"
+    qs "^6.9.6"
+    request "^2.88.2"
+    unhomoglyph "^1.0.6"
+
 "matrix-js-sdk@github:matrix-org/matrix-js-sdk#develop":
   version "15.1.1"
   resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/55b489b17a519bc0d557c47ac9fe7ce54690b602"