diff --git a/while-each-right/docs/types/index.d.ts b/while-each-right/docs/types/index.d.ts
index 0c6a681f..ce667387 100644
--- a/while-each-right/docs/types/index.d.ts
+++ b/while-each-right/docs/types/index.d.ts
@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-// TypeScript Version: 2.0
+// TypeScript Version: 4.1
 
 /// <reference types="@stdlib/types"/>