diff --git a/Package.resolved b/Package.resolved
index e69ce35..362f24d 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -6,8 +6,8 @@
         "repositoryURL": "https://github.com/kylef/Commander.git",
         "state": {
           "branch": null,
-          "revision": "e5b50ad7b2e91eeb828393e89b03577b16be7db9",
-          "version": "0.8.0"
+          "revision": "dc97e80a1cf5df6c5768528f039c65ad8c564712",
+          "version": "0.9.0"
         }
       },
       {
diff --git a/Sources/hmap/Print.swift b/Sources/hmap/Print.swift
index ba9b230..341cb3d 100755
--- a/Sources/hmap/Print.swift
+++ b/Sources/hmap/Print.swift
@@ -25,7 +25,7 @@ import Foundation
 import HeaderMapFrontend
 
 func addPrintCommand(to group: Group) {
-  let fileArgument = VariadicArgument<String>(
+  let fileArgument = Argument<[String]>(
     "file",
     description: "Path(s) to header map file"
   )