diff --git a/index.d.ts b/index.d.ts
deleted file mode 100644
index f5aa3194..00000000
--- a/index.d.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-declare namespace json2csv {
-  interface FieldValueCallback<T> {
-    (row: T, field: string): string;
-  }
-
-  interface FieldBase {
-    label?: string;
-    default?: string;
-  }
-
-  interface Field extends FieldBase {
-    value: string;
-  }
-
-  interface CallbackField<T> extends FieldBase {
-    value: FieldValueCallback<T>;
-  }
-
-  interface Options<T> {
-    ndjson?: boolean;
-    fields?: (string | Field | CallbackField<T>)[];
-    unwind?: string | string[];
-    flatten?: boolean;
-    defaultValue?: string;
-    quote?: string;
-    doubleQuote?: string;
-    delimiter?: string;
-    eol?: string;
-    excelStrings?: boolean;
-    header?: boolean;
-    includeEmptyRows?: boolean;
-    withBOM?: boolean;
-  }
-}
-
-declare function parse<T>(data: Any, options: json2csv.Options<T>): string;
-declare function parse(data: Any, options: json2csv.Options<{ [key: string]: string; }>): string;
-
-export = parse;