diff --git a/types/koa-bodyparser/index.d.ts b/types/koa-bodyparser/index.d.ts
index deb1eb04e9..3cf420ca12 100644
--- a/types/koa-bodyparser/index.d.ts
+++ b/types/koa-bodyparser/index.d.ts
@@ -47,6 +47,11 @@ declare namespace bodyParser {
          */
         jsonLimit?: string;
 
+        /**
+         * limit of the text body. Default is 1mb.
+         */
+        textLimit?: string;
+
         /**
          * when set to true, JSON parser will only accept arrays and objects. Default is true
          */