diff --git a/package-lock.json b/package-lock.json
index 369afae..1120817 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -236,9 +236,9 @@
       "dev": true
     },
     "async": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
-      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "dev": true,
       "requires": {
         "lodash": "^4.17.14"
diff --git a/package.json b/package.json
index 0b035fc..70cf3de 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "sticky-sidebar": "^3.3.1"
   },
   "devDependencies": {
-    "async": "^2.6.0",
+    "async": "^2.6.4",
     "babel": "^6.23.0",
     "babel-core": "^6.26.0",
     "babel-loader": "^7.1.2",