diff --git a/package.json b/package.json
index 62eec1c..864c095 100644
--- a/package.json
+++ b/package.json
@@ -8,13 +8,13 @@
   },
   "dependencies": {
     "defined": "^0.0.0",
-    "duplexer": "~0.1.1",
+    "duplexer": "^0.1.2",
     "minimist": "^1.2.6",
     "npm-which": "^1.0.2",
-    "sprintf": "~0.1.3",
-    "tap-parser": "~0.4.0",
+    "sprintf": "^0.1.5",
+    "tap-parser": "^0.4.3",
     "tape": "^5.6.1",
-    "through2": "~0.2.3"
+    "through2": "^0.2.3"
   },
   "repository": {
     "type": "git",