diff --git a/multimedia/opentimelineio/Makefile b/multimedia/opentimelineio/Makefile
index 4663f811de9d..bd184a50c2fd 100644
--- a/multimedia/opentimelineio/Makefile
+++ b/multimedia/opentimelineio/Makefile
@@ -1,30 +1,30 @@
 PORTNAME=	opentimelineio
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.15
 CATEGORIES=	multimedia
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	API and interchange format for editorial timeline information
 WWW=		https://github.com/PixarAnimationStudios/OpenTimelineIO
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 LIB_DEPENDS=	libImath-3_1.so:math/Imath
 
 USES=		cmake:testing compiler:c++14-lang
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	PixarAnimationStudios
 GH_PROJECT=	OpenTimelineIO
 
 GH_TUPLE=	martinmoene:optional-lite:5e4b7760aac85ea73a5b9b91c726fc36cbd4149b:martinmoene_optional_lite/src/deps/optional-lite \
 		Tencent:rapidjson:06d58b9e848c650114556a23294d0b6440078c61:Tencent_rapidjson/src/deps/rapidjson \
 		thelink2012:any:bfc77f2e4be6e9a093dd645ef3f1aa30620c9205:thelink2012_any/src/deps/any
 
 CMAKE_ON=	OTIO_FIND_IMATH
 
-PORTSCOUT=	ignore:v0.91 # erroneously labeled tag
+PORTSCOUT=	limit:^.*[0-9]$$ # should end with a digit to prevent tags like last_pure_python
 
 .include <bsd.port.mk>
diff --git a/multimedia/py-opentimelineio/Makefile b/multimedia/py-opentimelineio/Makefile
index 2fb9377c2d54..6bf8b1c292b4 100644
--- a/multimedia/py-opentimelineio/Makefile
+++ b/multimedia/py-opentimelineio/Makefile
@@ -1,32 +1,32 @@
 PORTNAME=	opentimelineio
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.15
 CATEGORIES=	multimedia
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	API and interchange format for editorial timeline information
 WWW=		https://github.com/PixarAnimationStudios/OpenTimelineIO
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 BUILD_DEPENDS=	cmake:devel/cmake-core
 LIB_DEPENDS=	libImath-3_1.so:math/Imath
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pybind11>0:devel/py-pybind11@${PY_FLAVOR}
 
 USES=		compiler:c++14-lang python
 USE_PYTHON=	distutils concurrent # autoplist is broken, see https://github.com/PixarAnimationStudios/OpenTimelineIO/issues/1205
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	PixarAnimationStudios
 GH_PROJECT=	OpenTimelineIO
 
 GH_TUPLE=	martinmoene:optional-lite:5e4b7760aac85ea73a5b9b91c726fc36cbd4149b:martinmoene_optional_lite/src/deps/optional-lite \
 		pybind:pybind11:e7e2c79f3f520f78ffc39fcb34f7919003102733:pybind_pybind11/src/deps/pybind11 \
 		Tencent:rapidjson:06d58b9e848c650114556a23294d0b6440078c61:Tencent_rapidjson/src/deps/rapidjson \
 		thelink2012:any:bfc77f2e4be6e9a093dd645ef3f1aa30620c9205:thelink2012_any/src/deps/any
 
-PORTSCOUT=	ignore:v0.91,last_pure_python # erroneously labeled tag
+PORTSCOUT=	limit:^.*[0-9]$$ # should end with a digit to prevent tags like last_pure_python
 
 .include <bsd.port.mk>