diff --git a/aio/package.json b/aio/package.json
index 55ac1fb2cd..0431e3d634 100644
--- a/aio/package.json
+++ b/aio/package.json
@@ -82,7 +82,7 @@
     "core-js": "^2.4.1",
     "jasmine": "^2.6.0",
     "ng-pwa-tools": "^0.0.10",
-    "rxjs": "^5.2.0",
+    "rxjs": "^5.4.3",
     "tslib": "^1.7.1",
     "web-animations-js": "^2.2.5",
     "zone.js": "^0.8.16"
diff --git a/aio/tools/examples/shared/package.json b/aio/tools/examples/shared/package.json
index 2358b39a81..85ba989112 100644
--- a/aio/tools/examples/shared/package.json
+++ b/aio/tools/examples/shared/package.json
@@ -28,7 +28,7 @@
     "@angular/upgrade": "~4.3.1",
     "angular-in-memory-web-api": "~0.4.0",
     "core-js": "^2.4.1",
-    "rxjs": "^5.1.0",
+    "rxjs": "^5.4.3",
     "systemjs": "0.19.39",
     "zone.js": "^0.8.4"
   },
diff --git a/aio/tools/examples/shared/yarn.lock b/aio/tools/examples/shared/yarn.lock
index 9ec2a8870d..f7d106b6c9 100644
--- a/aio/tools/examples/shared/yarn.lock
+++ b/aio/tools/examples/shared/yarn.lock
@@ -5390,12 +5390,18 @@ rx@4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
 
-rxjs@^5.0.1, rxjs@^5.1.0:
+rxjs@^5.0.1:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.1.0.tgz#0aa9018b7f440b505fa42bd742b6738be550e720"
   dependencies:
     symbol-observable "^1.0.1"
 
+rxjs@^5.4.3:
+  version "5.4.3"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.4.3.tgz#0758cddee6033d68e0fd53676f0f3596ce3d483f"
+  dependencies:
+    symbol-observable "^1.0.1"
+
 safe-buffer@^5.0.1, safe-buffer@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.0.tgz#fe4c8460397f9eaaaa58e73be46273408a45e223"
diff --git a/aio/yarn.lock b/aio/yarn.lock
index 32f7595ccb..c0f4b099b6 100644
--- a/aio/yarn.lock
+++ b/aio/yarn.lock
@@ -6564,13 +6564,7 @@ rx@2.3.24:
   version "2.3.24"
   resolved "https://registry.yarnpkg.com/rx/-/rx-2.3.24.tgz#14f950a4217d7e35daa71bbcbe58eff68ea4b2b7"
 
-rxjs@^5.2.0:
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.4.0.tgz#a7db14ab157f9d7aac6a56e655e7a3860d39bf26"
-  dependencies:
-    symbol-observable "^1.0.1"
-
-rxjs@^5.4.2:
+rxjs@5.x, rxjs@^5.4.2:
   version "5.4.3"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.4.3.tgz#0758cddee6033d68e0fd53676f0f3596ce3d483f"
   dependencies: