diff --git a/package.json b/package.json
index dc1ff70..aab0a7d 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   "dependencies": {
     "cross-spawn": "^5.0.1",
     "spawn-sync": "^1.0.15",
-    "which": "1.2.x"
+    "which": "~1.3.1"
   },
   "devDependencies": {
     "assume": "~1.5.0",