diff --git a/package.json b/package.json
index c97db00..1c2c3e4 100644
--- a/package.json
+++ b/package.json
@@ -5,20 +5,20 @@
   "main": "index.js",
   "dependencies": {
     "concat-stream": "~1.6.0",
-    "duplexer2": "~0.0.2",
-    "escodegen": "~1.3.2",
+    "duplexer2": "~0.1.4",
+    "escodegen": "~1.9.0",
     "falafel": "^2.1.0",
-    "has": "^1.0.0",
-    "object-inspect": "~0.4.0",
-    "quote-stream": "~0.0.0",
-    "readable-stream": "~1.0.27-1",
+    "has": "^1.0.1",
+    "object-inspect": "~1.4.0",
+    "quote-stream": "~1.0.2",
+    "readable-stream": "~2.3.3",
     "shallow-copy": "~0.0.1",
     "static-eval": "~0.2.0",
-    "through2": "~0.4.1"
+    "through2": "~2.0.3"
   },
   "devDependencies": {
-    "resolve": "^1.1.5",
-    "tape": "^3.4.0"
+    "resolve": "^1.5.0",
+    "tape": "^4.8.0"
   },
   "scripts": {
     "test": "tape test/*.js"