diff --git a/package-lock.json b/package-lock.json
index 6b08ab8..565dea2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -471,9 +471,9 @@
       }
     },
     "bower": {
-      "version": "1.8.4",
-      "resolved": "https://registry.npmjs.org/bower/-/bower-1.8.4.tgz",
-      "integrity": "sha1-54dqB23rgTf30GUl3F6MZtuC8oo=",
+      "version": "1.8.9",
+      "resolved": "https://registry.npmjs.org/bower/-/bower-1.8.9.tgz",
+      "integrity": "sha512-10CHDLeFr1adybioNdNnj3ieMMdk4sa23RAD3oeE0o1o7yf3qS7DmCSo2uQZrLEnbCN1qqeWZxOYxv+vWuguuQ==",
       "dev": true
     },
     "brace-expansion": {
diff --git a/package.json b/package.json
index b2584fe..71beb32 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "license": "BSD-3-Clause",
   "devDependencies": {
     "@polymer/gen-typescript-declarations": "^1.2.0",
-    "bower": "^1.8.0",
+    "bower": "^1.8.9",
     "webmat": "^0.2.0"
   },
   "scripts": {