diff --git a/package.json b/package.json
index ad530ff..608630d 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "concat-stream": "^2.0.0",
     "deep-equal": "^2.0.5",
     "hallmark": "^4.1.0",
-    "snake-case": "^3.0.4",
+    "snake-case": "^4.0.0",
     "standard": "^16.0.4",
     "tape": "^5.5.0",
     "through2": "^4.0.2"