diff --git a/mail/py-aiosmtpd/Makefile b/mail/py-aiosmtpd/Makefile
index 4cb720d7b8ed..eb4654afc40d 100644
--- a/mail/py-aiosmtpd/Makefile
+++ b/mail/py-aiosmtpd/Makefile
@@ -1,18 +1,20 @@
 PORTNAME=	aiosmtpd
 PORTVERSION=	1.4.2
 CATEGORIES=	mail python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	acm@FreeBSD.org
 COMMENT=	Asyncio based SMTP server
 
 LICENSE=	APACHE20
 
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}atpublic>=0:devel/py-atpublic@${PY_FLAVOR}
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}atpublic>=0:devel/py-atpublic@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}attrs>=0:devel/py-attrs@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}typing-extensions>=0:devel/py-typing-extensions@${PY_FLAVOR}
 
 USES=		python:3.5+
 USE_PYTHON=	autoplist distutils
 NO_ARCH=	yes
 
 .include <bsd.port.mk>