diff --git a/CHANGELOG.md b/CHANGELOG.md
index 322f327f02..85025c1c81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,51 @@
+Changes in [1.5.6](https://github.com/vector-im/riot-web/releases/tag/v1.5.6) (2019-12-09)
+==========================================================================================
+[Full Changelog](https://github.com/vector-im/riot-web/compare/v1.5.6-rc.1...v1.5.6)
+
+ * No changes since rc.1
+
+Changes in [1.5.6-rc.1](https://github.com/vector-im/riot-web/releases/tag/v1.5.6-rc.1) (2019-12-04)
+====================================================================================================
+[Full Changelog](https://github.com/vector-im/riot-web/compare/v1.5.5...v1.5.6-rc.1)
+
+ * Update Lithuanian language name
+   [\#11599](https://github.com/vector-im/riot-web/pull/11599)
+ * Enable more languages
+   [\#11592](https://github.com/vector-im/riot-web/pull/11592)
+ * Fix Docker build for develop and publish a /version file
+   [\#11588](https://github.com/vector-im/riot-web/pull/11588)
+ * Remove unused translations
+   [\#11540](https://github.com/vector-im/riot-web/pull/11540)
+ * Update from Weblate
+   [\#11591](https://github.com/vector-im/riot-web/pull/11591)
+ * Update riot.im enable_presence_by_hs_url for new matrix.org client URL
+   [\#11565](https://github.com/vector-im/riot-web/pull/11565)
+ * Remove mention of vector.im as default identity server on mobile guide
+   [\#11544](https://github.com/vector-im/riot-web/pull/11544)
+ * Clean up and standardise app config
+   [\#11549](https://github.com/vector-im/riot-web/pull/11549)
+ * make it clear that seshat requires electron-build-env (at least on macOS)
+   [\#11527](https://github.com/vector-im/riot-web/pull/11527)
+ * Add postcss-easings
+   [\#11521](https://github.com/vector-im/riot-web/pull/11521)
+ * ElectronPlatform: Add support for a event index using Seshat.
+   [\#11125](https://github.com/vector-im/riot-web/pull/11125)
+ * Sign all of the Windows executable files
+   [\#11516](https://github.com/vector-im/riot-web/pull/11516)
+ * Clarify that cross-signing is in development
+   [\#11493](https://github.com/vector-im/riot-web/pull/11493)
+ * get rid of bluebird
+   [\#11301](https://github.com/vector-im/riot-web/pull/11301)
+ * Update from Weblate
+   [\#11488](https://github.com/vector-im/riot-web/pull/11488)
+ * Add note in README about self-hosted riot installs requiring custom caching
+   headers
+   [\#8702](https://github.com/vector-im/riot-web/pull/8702)
+ * De-dup theming code
+   [\#11445](https://github.com/vector-im/riot-web/pull/11445)
+ * Add eslint-plugin-jest because we inherit js-sdk's eslintrc and it wants
+   [\#11448](https://github.com/vector-im/riot-web/pull/11448)
+
 Changes in [1.5.5](https://github.com/vector-im/riot-web/releases/tag/v1.5.5) (2019-11-27)
 ==========================================================================================
 [Full Changelog](https://github.com/vector-im/riot-web/compare/v1.5.4...v1.5.5)
diff --git a/electron_app/package.json b/electron_app/package.json
index 3338f6159d..c49934b96f 100644
--- a/electron_app/package.json
+++ b/electron_app/package.json
@@ -2,7 +2,7 @@
   "name": "riot-web",
   "productName": "Riot",
   "main": "src/electron-main.js",
-  "version": "1.5.5",
+  "version": "1.5.6",
   "description": "A feature-rich client for Matrix.org",
   "author": "New Vector Ltd.",
   "dependencies": {
diff --git a/package.json b/package.json
index 86f24ca708..c710e331b8 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "riot-web",
   "productName": "Riot",
   "main": "electron_app/src/electron-main.js",
-  "version": "1.5.5",
+  "version": "1.5.6",
   "description": "A feature-rich client for Matrix.org",
   "author": "New Vector Ltd.",
   "repository": {
@@ -64,6 +64,7 @@
     "test-multi": "karma start"
   },
   "dependencies": {
+    "babel-plugin-transform-async-to-bluebird": "^1.1.1",
     "babel-polyfill": "^6.26.0",
     "babel-runtime": "^6.26.0",
     "browser-request": "^0.3.3",
@@ -71,8 +72,8 @@
     "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": "2.4.6",
+    "matrix-react-sdk": "1.7.5",
     "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 a43ca16269..2b73444354 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6094,7 +6094,7 @@ matrix-mock-request@^1.2.3:
     linkifyjs "^2.1.6"
     lodash "^4.17.14"
     lolex "4.2"
-    matrix-js-sdk "github:matrix-org/matrix-js-sdk#develop"
+    matrix-js-sdk "2.4.6"
     optimist "^0.6.1"
     pako "^1.0.5"
     png-chunks-extract "^1.0.0"