diff --git a/packages/benchpress/package.json b/packages/benchpress/package.json
index a7d77cd659..c31cd2de6c 100644
--- a/packages/benchpress/package.json
+++ b/packages/benchpress/package.json
@@ -8,7 +8,7 @@
   "dependencies": {
     "@angular/core": "^2.0.0-rc.7",
     "reflect-metadata": "^0.1.2",
-    "rxjs": "^6.0.0",
+    "rxjs": "^6.4.0",
     "jpm": "1.1.4",
     "firefox-profile": "0.4.0",
     "selenium-webdriver": "^2.53.3"
@@ -26,4 +26,4 @@
     "url": "https://github.com/angular/angular/issues"
   },
   "homepage": "https://github.com/angular/angular/tree/master/packages/compiler-cli"
-}
\ No newline at end of file
+}
diff --git a/packages/common/package.json b/packages/common/package.json
index 865fb8faee..ef54e86845 100644
--- a/packages/common/package.json
+++ b/packages/common/package.json
@@ -17,7 +17,7 @@
   },
   "locales": "locales",
   "peerDependencies": {
-    "rxjs": "^6.0.0",
+    "rxjs": "^6.4.0",
     "@angular/core": "0.0.0-PLACEHOLDER"
   },
   "repository": {
diff --git a/packages/core/package.json b/packages/core/package.json
index 8fce023349..2070b29b0a 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -16,7 +16,7 @@
     "tslib": "^1.9.0"
   },
   "peerDependencies": {
-    "rxjs": "^6.0.0",
+    "rxjs": "^6.4.0",
     "zone.js": "~0.9.0"
   },
   "repository": {
diff --git a/packages/elements/package.json b/packages/elements/package.json
index 2b44aa73b7..8e7a84c5dd 100644
--- a/packages/elements/package.json
+++ b/packages/elements/package.json
@@ -18,7 +18,7 @@
   "peerDependencies": {
     "@angular/core": "0.0.0-PLACEHOLDER",
     "@angular/platform-browser": "0.0.0-PLACEHOLDER",
-    "rxjs": "^6.0.0"
+    "rxjs": "^6.4.0"
   },
   "repository": {
     "type": "git",
diff --git a/packages/forms/package.json b/packages/forms/package.json
index 9b644c186b..a7e8b34ed4 100644
--- a/packages/forms/package.json
+++ b/packages/forms/package.json
@@ -16,7 +16,7 @@
     "tslib": "^1.9.0"
   },
   "peerDependencies": {
-    "rxjs": "^6.0.0",
+    "rxjs": "^6.4.0",
     "@angular/core": "0.0.0-PLACEHOLDER",
     "@angular/common": "0.0.0-PLACEHOLDER",
     "@angular/platform-browser": "0.0.0-PLACEHOLDER"
diff --git a/packages/http/package.json b/packages/http/package.json
index eac22ac7a3..17cad5068a 100644
--- a/packages/http/package.json
+++ b/packages/http/package.json
@@ -16,7 +16,7 @@
     "tslib": "^1.9.0"
   },
   "peerDependencies": {
-    "rxjs": "^6.0.0",
+    "rxjs": "^6.4.0",
     "@angular/core": "0.0.0-PLACEHOLDER",
     "@angular/platform-browser": "0.0.0-PLACEHOLDER"
   },
diff --git a/packages/router/package.json b/packages/router/package.json
index 115d685b85..9a3ee78a9a 100644
--- a/packages/router/package.json
+++ b/packages/router/package.json
@@ -31,7 +31,7 @@
     "@angular/core": "0.0.0-PLACEHOLDER",
     "@angular/common": "0.0.0-PLACEHOLDER",
     "@angular/platform-browser": "0.0.0-PLACEHOLDER",
-    "rxjs": "^6.0.0"
+    "rxjs": "^6.4.0"
   },
   "ng-update": {
     "packageGroup": "NG_UPDATE_PACKAGE_GROUP"