diff --git a/packages/platform-browser/package.json b/packages/platform-browser/package.json
index f20cfdd2c1..6a1b676555 100644
--- a/packages/platform-browser/package.json
+++ b/packages/platform-browser/package.json
@@ -13,10 +13,16 @@
   "author": "angular",
   "license": "MIT",
   "peerDependencies": {
+    "@angular/animations": "0.0.0-PLACEHOLDER",
     "@angular/core": "0.0.0-PLACEHOLDER",
     "@angular/common": "0.0.0-PLACEHOLDER",
     "tslib": "^1.10.0"
   },
+  "peerDependenciesMeta": {
+    "@angular/animations": {
+      "optional": true
+    }
+  },
   "repository": {
     "type": "git",
     "url": "https://github.com/angular/angular.git",