Index: head/science/py-cdo/Makefile
===================================================================
--- head/science/py-cdo/Makefile	(revision 434777)
+++ head/science/py-cdo/Makefile	(revision 434778)
@@ -1,21 +1,22 @@
 # Created by: Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	cdo
-PORTVERSION=	1.3.2
+PORTVERSION=	1.3.3
 CATEGORIES=	science python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Python binding to CDO (Climate Data Operators)
 
 LICENSE=	GPLv2
 
-RUN_DEPENDS=	cdo:science/cdo
+RUN_DEPENDS=	cdo:science/cdo \
+		${PYTHON_PKGNAMEPREFIX}six>=0:devel/py-six
 
 NO_ARCH=	yes
 USE_PYTHON=	autoplist concurrent distutils
 USES=		python
 
 .include <bsd.port.mk>
Index: head/science/py-cdo/distinfo
===================================================================
--- head/science/py-cdo/distinfo	(revision 434777)
+++ head/science/py-cdo/distinfo	(revision 434778)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1479405315
-SHA256 (cdo-1.3.2.tar.gz) = 9f78879d90d14134f2320565016d0d371b7dfe7ec71110fd313868ec1db34aee
-SIZE (cdo-1.3.2.tar.gz) = 11949
+TIMESTAMP = 1488010797
+SHA256 (cdo-1.3.3.tar.gz) = 33653e582a8e62df2da9c8be2832618a85e20dc59ef92db53540a1740f0b387e
+SIZE (cdo-1.3.3.tar.gz) = 11840