diff --git a/package.json b/package.json
index a9911c8..b3fe430 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "dependencies": {
     "chalk": "~2.4.0",
     "fmt-obj": "~2.0.0",
-    "pretty-ms": "~3.2.0",
+    "pretty-ms": "~4.0.0",
     "sliced": "~1.0.1"
   },
   "devDependencies": {