diff --git a/package.json b/package.json
index 8aac49e..c15233c 100644
--- a/package.json
+++ b/package.json
@@ -31,21 +31,21 @@
     "dotenv": "4.0.0",
     "express": "4.14.1",
     "git-guppy": "2.1.0",
-    "googleapis": "16.1.0",
-    "gulp": "3.9.1",
-    "gulp-coffee": "2.3.3",
+    "googleapis": "49.0.0",
+    "gulp": "4.0.0",
+    "gulp-coffee": "3.0.1",
     "gulp-coffee-istanbul": "0.9.1",
     "gulp-coffeelint": "0.6.0",
-    "gulp-concat-css": "2.3.0",
-    "gulp-filter": "4.0.0",
+    "gulp-concat-css": "3.0.0",
+    "gulp-filter": "5.1.0",
     "gulp-jade": "1.1.0",
-    "gulp-jasmine": "2.4.2",
-    "gulp-jshint": "2.0.4",
-    "gulp-less": "3.3.0",
-    "gulp-mocha": "3.0.1",
+    "gulp-jasmine": "3.0.0",
+    "gulp-jshint": "2.1.0",
+    "gulp-less": "5.0.0",
+    "gulp-mocha": "5.0.0",
     "gulp-plumber": "^1.1.0",
     "gulp-rename": "1.2.2",
-    "gulp-strip-debug": "1.1.0",
+    "gulp-strip-debug": "2.0.0",
     "gulp-uglify": "2.0.1",
     "jshint": "2.9.4",
     "lodash": "^4.17.2",
@@ -54,7 +54,7 @@
     "multer": "1.3.0",
     "nock": "9.0.3",
     "node-schedule": "1.2.0",
-    "nodemailer": "2.7.0",
+    "nodemailer": "3.0.0",
     "passport": "^0.3.2",
     "passport-openid": "^0.4.0",
     "pug": "2.0.0-beta10",