diff --git a/internal/sms-gateway/handlers/thirdparty/auth.go b/internal/sms-gateway/handlers/thirdparty/auth.go
index 432db66a..98f68404 100644
--- a/internal/sms-gateway/handlers/thirdparty/auth.go
+++ b/internal/sms-gateway/handlers/thirdparty/auth.go
@@ -53,6 +53,7 @@ func (h *AuthHandler) Register(router fiber.Router) {
 //	@Failure		401		{object}	smsgateway.ErrorResponse	"Unauthorized"
 //	@Failure		403		{object}	smsgateway.ErrorResponse	"Forbidden"
 //	@Failure		500		{object}	smsgateway.ErrorResponse	"Internal server error"
+//	@Failure		501		{object}	smsgateway.ErrorResponse	"Not implemented"
 //	@Router			/3rdparty/v1/auth/token [post]
 //
 // Generate token.
@@ -91,6 +92,7 @@ func (h *AuthHandler) postToken(userID string, c *fiber.Ctx) error {
 //	@Failure		401	{object}	smsgateway.ErrorResponse	"Unauthorized"
 //	@Failure		403	{object}	smsgateway.ErrorResponse	"Forbidden"
 //	@Failure		500	{object}	smsgateway.ErrorResponse	"Internal server error"
+//	@Failure		501	{object}	smsgateway.ErrorResponse	"Not implemented"
 //	@Router			/3rdparty/v1/auth/token/{jti} [delete]
 //
 // Revoke token.