diff --git a/lib/file-operations.js b/lib/file-operations.js
index 7dd25d7b..89c9255f 100644
--- a/lib/file-operations.js
+++ b/lib/file-operations.js
@@ -73,12 +73,12 @@ function getModeDiff(fsMode, vinylMode) {
 
 function getTimesDiff(fsStat, vinylStat) {
 
-  var mtime = date(vinylStat.mtime);
+  var mtime = date(vinylStat.mtime) || 0;
   if (!mtime) {
     return;
   }
 
-  var atime = date(vinylStat.atime);
+  var atime = date(vinylStat.atime) || 0;
   if (+mtime === +fsStat.mtime &&
       +atime === +fsStat.atime) {
     return;
diff --git a/package.json b/package.json
index 75a4389a..0570e602 100644
--- a/package.json
+++ b/package.json
@@ -37,12 +37,12 @@
     "pumpify": "^1.3.5",
     "remove-bom-buffer": "^3.0.0",
     "remove-bom-stream": "^1.2.0",
-    "resolve-options": "^1.0.0",
+    "resolve-options": "^1.1.0",
     "through2": "^2.0.0",
     "to-through": "^2.0.0",
-    "value-or-function": "^2.0.0",
+    "value-or-function": "^3.0.0",
     "vinyl": "^2.0.0",
-    "vinyl-sourcemap": "^1.0.0"
+    "vinyl-sourcemap": "^1.1.0"
   },
   "devDependencies": {
     "eslint": "^1.10.3",