diff --git a/package.json b/package.json
index b85191dc22..09a6dedcfd 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "is-ip": "^2.0.0",
     "linkifyjs": "^2.1.9",
     "lodash": "^4.17.19",
-    "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
+    "matrix-js-sdk": "8.3.0-rc.1",
     "minimist": "^1.2.5",
     "pako": "^1.0.11",
     "parse5": "^5.1.1",
diff --git a/yarn.lock b/yarn.lock
index ec099bbf7c..6aa2497a56 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2898,15 +2898,6 @@ crc-32@^0.3.0:
   resolved "https://registry.yarnpkg.com/crc-32/-/crc-32-0.3.0.tgz#6a3d3687f5baec41f7e9b99fe1953a2e5d19775e"
   integrity sha1-aj02h/W67EH36bmf4ZU6Ll0Zd14=
 
-create-react-class@^15.6.3:
-  version "15.6.3"
-  resolved "https://registry.yarnpkg.com/create-react-class/-/create-react-class-15.6.3.tgz#2d73237fb3f970ae6ebe011a9e66f46dbca80036"
-  integrity sha512-M+/3Q6E6DLO6Yx3OwrWjwHBnvfXXYA7W+dFjt/ZDBemHO1DDZhsalX/NUtnTYclN6GfnBDRh4qRHjcDHmlJBJg==
-  dependencies:
-    fbjs "^0.8.9"
-    loose-envify "^1.3.1"
-    object-assign "^4.1.1"
-
 cross-spawn@^6.0.0, cross-spawn@^6.0.5:
   version "6.0.5"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
@@ -3988,7 +3979,7 @@ fbjs@0.1.0-alpha.7:
     promise "^7.0.3"
     whatwg-fetch "^0.9.0"
 
-fbjs@^0.8.4, fbjs@^0.8.9:
+fbjs@^0.8.4:
   version "0.8.17"
   resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.17.tgz#c4d598ead6949112653d6588b01a5cdcd9f90fdd"
   integrity sha1-xNWY6taUkRJlPWWIsBpc3Nn5D90=
@@ -5841,7 +5832,7 @@ longest-streak@^2.0.1:
   resolved "https://registry.yarnpkg.com/longest-streak/-/longest-streak-2.0.4.tgz#b8599957da5b5dab64dee3fe316fa774597d90e4"
   integrity sha512-vM6rUVCVUJJt33bnmHiZEvr7wPT78ztX7rojL+LW51bHtLh6HTjx84LA5W4+oa6aKEJA7jJu5LR6vQRBpA5DVg==
 
-loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.3.1, loose-envify@^1.4.0:
+loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
   integrity sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==
@@ -5939,9 +5930,10 @@ mathml-tag-names@^2.0.1:
   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 "8.2.0"
-  resolved "https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/c6992e2056901502af19e40ba0d1103c4c1f61ed"
+matrix-js-sdk@8.3.0-rc.1:
+  version "8.3.0-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-8.3.0-rc.1.tgz#19546de4bb9476e52e1e2761db54a9f138510f49"
+  integrity sha512-TnnaM2qsCNzZpNbzuduCDbIWchO9rrKhOjVHcbbbNBlpPUukEeoQo0FYw6MUjy7MSjyH1GIstAmRFlg0vbu0Qw==
   dependencies:
     "@babel/runtime" "^7.8.3"
     another-json "^0.2.0"