diff --git a/package-lock.json b/package-lock.json
index 4c8a36d..b0d9efd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -255,9 +255,9 @@
       }
     },
     "acorn": {
-      "version": "6.3.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-      "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA==",
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
       "dev": true
     },
     "ajv": {
@@ -5479,14 +5479,6 @@
       "resolved": "https://registry.npmjs.org/ts-binary/-/ts-binary-0.7.0.tgz",
       "integrity": "sha512-IPYBITV5LBwUqc+e0fMqu5VtjtzS1EC5CHGfRyOKVky1655NY8hxpp6vGoc+rDfqbQkPvdidv7zMn4dEx/IgzA=="
     },
-    "ts-binary-types": {
-      "version": "0.2.2",
-      "resolved": "https://registry.npmjs.org/ts-binary-types/-/ts-binary-types-0.2.2.tgz",
-      "integrity": "sha512-MOI3ULUEHLoa1VatBhx3ZbP47PkiX/2/3Jce8Avc6m1DhrHtlnGwk6fsciUDlDr+YiYGwX4lVZs3lwTKsRIzRA==",
-      "requires": {
-        "ts-binary": "^0.7.0"
-      }
-    },
     "ts-loader": {
       "version": "6.2.0",
       "resolved": "https://registry.npmjs.org/ts-loader/-/ts-loader-6.2.0.tgz",