Index: head/biology/unanimity/Makefile
===================================================================
--- head/biology/unanimity/Makefile
+++ head/biology/unanimity/Makefile
@@ -1,9 +1,9 @@
 # $FreeBSD$
 
-PORTNAME=	unanimity
-DISTVERSION=	g20180307
-PORTREVISION=	1
-CATEGORIES=	biology
+PORTNAME=		unanimity
+DISTVERSIONPREFIX=	v
+DISTVERSION=		3.1.0
+CATEGORIES=		biology
 
 MAINTAINER=	jwb@FreeBSD.org
 COMMENT=	Pacific Biosciences consensus library and applications
@@ -14,16 +14,15 @@
 BROKEN_aarch64=		fails to compile: mmintrin.h:47:5: use of undeclared identifier '__builtin_ia32_emms'; did you mean '__builtin_isless'?
 
 # Sensitive to dependency versions, use latest commit for everything
-BUILD_DEPENDS=	pbseqan==g20171002:biology/pbseqan \
-		pbbam==g20180416:biology/pbbam \
-		pbcopper==g20180413:biology/pbcopper
+BUILD_DEPENDS=	pbseqan>=g20171002:biology/pbseqan \
+		pbbam>=g20180416:biology/pbbam \
+		pbcopper>=g20180413:biology/pbcopper
 LIB_DEPENDS=	libhts.so:biology/htslib \
 		libboost_regex.so:devel/boost-libs
 
 USES=		cmake pkgconfig python
 USE_GITHUB=	yes
 GH_ACCOUNT=	PacificBiosciences
-GH_TAGNAME=	6f11a13e1472b8c00337ba8c5e94bf83bdab31d6
 
 CMAKE_ARGS+=	-DHTSLIB_INCLUDE_DIRS:STRING=${LOCALBASE}/include/htslib \
 		-DHTSLIB_LIBRARIES:STRING="-L${LOCALBASE}/lib -lhts" \
Index: head/biology/unanimity/distinfo
===================================================================
--- head/biology/unanimity/distinfo
+++ head/biology/unanimity/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1524324354
-SHA256 (PacificBiosciences-unanimity-g20180307-6f11a13e1472b8c00337ba8c5e94bf83bdab31d6_GH0.tar.gz) = 20ed61c46afcfe86403a564136b96f909149208c51fde16f608e924ad4c59e38
-SIZE (PacificBiosciences-unanimity-g20180307-6f11a13e1472b8c00337ba8c5e94bf83bdab31d6_GH0.tar.gz) = 6492231
+TIMESTAMP = 1534907295
+SHA256 (PacificBiosciences-unanimity-v3.1.0_GH0.tar.gz) = 355866bd3f83bf1f7c322269c01d3c2f943e30942455741d6e802b0ad3f89912
+SIZE (PacificBiosciences-unanimity-v3.1.0_GH0.tar.gz) = 6493202