diff --git a/package.json b/package.json
index 4359b5d..dd5b98c 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@polymer/iron-jsonp-library": "^3.0.0-pre.19",
-    "@polymer/polymer": "^3.0.0"
+    "@polymer/polymer": "^3.5.0"
   },
   "devDependencies": {
     "@polymer/iron-component-page": "^3.0.0-pre.19",
diff --git a/yarn.lock b/yarn.lock
index bd16664..2be8970 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -250,6 +250,13 @@
   dependencies:
     "@webcomponents/shadycss" "^1.9.1"
 
+"@polymer/polymer@^3.5.0":
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/@polymer/polymer/-/polymer-3.5.1.tgz#4b5234e43b8876441022bcb91313ab3c4a29f0c8"
+  integrity sha512-JlAHuy+1qIC6hL1ojEUfIVD58fzTpJAoCxFwV5yr0mYTXV1H8bz5zy0+rC963Cgr9iNXQ4T9ncSjC2fkF9BQfw==
+  dependencies:
+    "@webcomponents/shadycss" "^1.9.1"
+
 "@polymer/prism-element@^3.0.0-pre.21":
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/@polymer/prism-element/-/prism-element-3.0.1.tgz#b35d53eec9ecea5e5fec7c82c7e978e760e53501"