diff --git a/cmd.js b/cmd.js
index 695b845..d65a75d 100755
--- a/cmd.js
+++ b/cmd.js
@@ -19,14 +19,16 @@ const debug = require("debug")("Eleventy:DevServer");
 
 try {
   const defaults = Cli.getDefaultOptions();
-  for(let key in defaults) {
-    if(key.toLowerCase() !== key) {
+  for (let key in defaults) {
+    if (key.toLowerCase() !== key) {
       defaults[key.toLowerCase()] = defaults[key];
       delete defaults[key];
     }
   }
 
-  const argv = require("minimist")(process.argv.slice(2), {
+  const mri = require("mri");
+
+  const argv = mri(process.argv.slice(2), {
     string: [
       "dir",
       "input", // alias for dir
@@ -38,6 +40,9 @@ try {
       "domdiff",
     ],
     default: defaults,
+    alias: {
+      input: "dir",
+    },
     unknown: function (unknownArgument) {
       throw new Error(
         `We don’t know what '${unknownArgument}' is. Use --help to see the list of supported commands.`
diff --git a/package.json b/package.json
index e413c7c..daca810 100644
--- a/package.json
+++ b/package.json
@@ -43,8 +43,8 @@
     "debug": "^4.4.0",
     "finalhandler": "^1.3.1",
     "mime": "^3.0.0",
-    "minimist": "^1.2.8",
     "morphdom": "^2.7.4",
+    "mri": "^1.2.0",
     "please-upgrade-node": "^3.2.0",
     "send": "^1.1.0",
     "ssri": "^11.0.0",