diff --git a/package.json b/package.json
index 0e5d07c..8b8b082 100644
--- a/package.json
+++ b/package.json
@@ -16,9 +16,9 @@
     "test": "mocha test/**.js"
   },
   "dependencies": {
-    "async": "1.5.2",
+    "async": "2.0.1",
     "advanced-pool": "0.3.2",
-    "base64url": "1.0.6",
+    "base64url": "2.0.0",
     "canvas": "1.4.0",
     "clone": "1.0.2",
     "color": "0.11.3",
@@ -29,12 +29,12 @@
     "mbtiles": "0.9.0",
     "morgan": "1.7.0",
     "nomnom": "1.8.1",
-    "request": "2.73.0",
+    "request": "2.74.0",
     "sharp": "0.15.1",
     "sphericalmercator": "1.0.5"
   },
   "devDependencies": {
-    "should": "^9.0.0",
+    "should": "^10.0.0",
     "mocha": "^2.5.0",
     "supertest": "^1.2.0"
   }