diff --git a/package-lock.json b/package-lock.json
index 3263f23..7f958fa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@types/chai": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.0.4.tgz",
-      "integrity": "sha512-cvU0HomQ7/aGDQJZsbtJXqBQ7w4J4TqLB0Z/h8mKrpRjfeZEvTbygkfJEb7fWdmwpIeDeFmIVwAEqS0OYuUv3Q==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.0.5.tgz",
+      "integrity": "sha512-ZC4tZU+3rDblhVy9cUQp5u+Zw9M0geGY8tzUQgc+4CMIWQLUFpgvrHhaYrSq1TK2m0DjaYIp9yJPyTHN+qhBZg==",
       "dev": true
     },
     "@types/mocha": {
@@ -17,9 +17,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "8.0.47",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.0.47.tgz",
-      "integrity": "sha512-kOwL746WVvt/9Phf6/JgX/bsGQvbrK5iUgzyfwZNcKVFcjAUVSpF9HxevLTld2SG9aywYHOILj38arDdY1r/iQ==",
+      "version": "8.0.53",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.0.53.tgz",
+      "integrity": "sha512-54Dm6NwYeiSQmRB1BLXKr5GELi0wFapR1npi8bnZhEcu84d/yQKqnwwXQ56hZ0RUbTG6L5nqDZaN3dgByQXQRQ==",
       "dev": true
     },
     "abbrev": {
diff --git a/package.json b/package.json
index 0ab235d..d9c21a1 100644
--- a/package.json
+++ b/package.json
@@ -23,9 +23,9 @@
     "xmlhttprequest": "^1.8.0"
   },
   "devDependencies": {
-    "@types/chai": "^4.0.4",
+    "@types/chai": "^4.0.5",
     "@types/mocha": "^2.2.44",
-    "@types/node": "^8.0.34",
+    "@types/node": "^8.0.53",
     "babel-cli": "^6.26.0",
     "chai": "^4.1.2",
     "coveralls": "^3.0.0",