diff --git a/package-lock.json b/package-lock.json
index 3a889d21..281fce5e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1225,9 +1225,9 @@
       }
     },
     "acorn": {
-      "version": "6.1.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-      "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
       "dev": true
     },
     "acorn-dynamic-import": {
diff --git a/package.json b/package.json
index 2c27bf56..36e5a46e 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "@ngtools/webpack": "8.0.2",
     "@types/jest": "24.0.14",
     "@types/node": "10.12.27",
-    "acorn": "6.1.1",
+    "acorn": "6.4.1",
     "angular-router-loader": "0.8.5",
     "angular2-template-loader": "0.6.2",
     "autoprefixer": "9.6.0",