diff --git a/lib/config.ts b/lib/config.ts
index 37db785cc..3af3247e4 100644
--- a/lib/config.ts
+++ b/lib/config.ts
@@ -560,7 +560,7 @@ export interface Config {
     /**
      * Require files before executing the features.
      */
-    require?: string;
+    require?: string[] | string;
     /**
      * Only execute the features or scenarios with tags matching @dev.
      * This may be an array of strings to specify multiple tags to include.
@@ -569,11 +569,11 @@ export interface Config {
     /**
      * How to format features (default: progress)
      */
-    format?: string;
-    // Other options include `coffee`, `noSnippets`, and `dryRun`
-    coffee?: any;
-    noSnippets?: any;
-    dryRun?: any;
+    format?: string[] | string;
+    /**
+     * Quickly scan your features without actually running them.
+     */
+    dryRun?: boolean;
   };
 
   /**