diff --git a/aio/tools/ng-packages-installer/index.js b/aio/tools/ng-packages-installer/index.js
index d8b6fd0670..93b0efe13d 100644
--- a/aio/tools/ng-packages-installer/index.js
+++ b/aio/tools/ng-packages-installer/index.js
@@ -169,6 +169,7 @@ class NgPackagesInstaller {
     // FIXME: Temporarily use RxJS from root `node_modules/`.
     if (peerDependencies.rxjs) {
       peerDependencies.rxjs = `file:${ANGULAR_ROOT_DIR}/node_modules/rxjs`;
+      peerDependencies['rxjs-compat'] = '6.0.0-beta.0';
     }
 
     return [mergedDependencies, peerDependencies];
diff --git a/integration/_payload-limits.json b/integration/_payload-limits.json
index 0b3895b7a2..cde9303ed9 100644
--- a/integration/_payload-limits.json
+++ b/integration/_payload-limits.json
@@ -3,8 +3,8 @@
     "master": {
       "uncompressed": {
         "inline": 1508,
-        "main": "TODO(i): temporarily increase the payload size limit to 352346 from 155112, we need CLI v6 to bring the size down",
-        "main": 251064,
+        "main": "TODO(i): temporarily increase the payload size limit to 257298 from 155112, we need CLI v6 to bring the size down",
+        "main": 257298,
         "polyfills": 59483
       }
     }
@@ -12,8 +12,8 @@
   "hello_world__closure": {
     "master": {
       "uncompressed": {
-        "bundle": "TODO(i): temporarily increase the payload size limit to 221852 from 105779 - we need CLI v6 to bring the size down",
-        "bundle": 221852
+        "bundle": "TODO(i): temporarily increase the payload size limit to 226340git  from 105779 - we need CLI v6 to bring the size down",
+        "bundle": 226340
       }
     }
   },
diff --git a/package.json b/package.json
index 5c78fb67bf..3ed10107c9 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "dependencies": {
     "core-js": "^2.4.1",
     "reflect-metadata": "^0.1.3",
-    "rxjs": "6.0.0-alpha.4",
+    "rxjs": "6.0.0-beta.0",
     "tslib": "^1.7.1",
     "zone.js": "^0.8.12"
   },
diff --git a/packages/core/package.json b/packages/core/package.json
index f8850a5412..ea64cdb77a 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -16,7 +16,7 @@
     "tslib": "^1.9.0"
   },
   "peerDependencies": {
-    "rxjs": "^6.0.0-alpha.3",
+    "rxjs": "^5.6.0-forward-compat.0 || ^6.0.0-beta.0",
     "zone.js": "^0.8.4"
   },
   "repository": {
diff --git a/packages/core/test/bundling/hello_world/bundle.golden_symbols.json b/packages/core/test/bundling/hello_world/bundle.golden_symbols.json
index 5f8a59d9e4..a8565e07c5 100644
--- a/packages/core/test/bundling/hello_world/bundle.golden_symbols.json
+++ b/packages/core/test/bundling/hello_world/bundle.golden_symbols.json
@@ -95,6 +95,9 @@
   {
     "name": "__extends$20"
   },
+  {
+    "name": "_enable_super_gross_mode_that_will_cause_bad_things"
+  },
   {
     "name": "_renderCompCount"
   },
@@ -179,6 +182,9 @@
   {
     "name": "hostElement"
   },
+  {
+    "name": "hostReportError"
+  },
   {
     "name": "initChangeDetectorIfExisting"
   },
diff --git a/packages/core/test/bundling/injection/bundle.golden_symbols.json b/packages/core/test/bundling/injection/bundle.golden_symbols.json
index cec5fad462..43bca0bd43 100644
--- a/packages/core/test/bundling/injection/bundle.golden_symbols.json
+++ b/packages/core/test/bundling/injection/bundle.golden_symbols.json
@@ -137,6 +137,9 @@
   {
     "name": "_currentInjector"
   },
+  {
+    "name": "_enable_super_gross_mode_that_will_cause_bad_things"
+  },
   {
     "name": "config"
   },
@@ -185,6 +188,9 @@
   {
     "name": "hasOnDestroy"
   },
+  {
+    "name": "hostReportError"
+  },
   {
     "name": "inject"
   },
diff --git a/yarn.lock b/yarn.lock
index 6eb3101205..bf1f30cb6f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6214,9 +6214,9 @@ rx-lite@^3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-3.1.2.tgz#19ce502ca572665f3b647b10939f97fd1615f102"
 
-rxjs@6.0.0-alpha.4:
-  version "6.0.0-alpha.4"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.0.0-alpha.4.tgz#e24afa7457d95a981f081d2979c3ba69b20c8ca3"
+rxjs@6.0.0-beta.0:
+  version "6.0.0-beta.0"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.0.0-beta.0.tgz#cf241936be39d8279ed0b2be4bf417777301f65a"
   dependencies:
     tslib "^1.9.0"