diff --git a/src/Argument/Argument.php b/src/Argument/Argument.php
index 5eb7a5f..066456b 100644
--- a/src/Argument/Argument.php
+++ b/src/Argument/Argument.php
@@ -357,14 +357,6 @@ public function values()
         return array_map([$this, $cast_method], $this->defaultValue());
     }
 
-    /**
-     * @deprecated use values() instead.
-     */
-    public function valueArray()
-    {
-        return $this->values();
-    }
-
     /**
      * Set an argument's value based on its command line entry.
      *