Index: head/ftp/R-cran-curl/Makefile
===================================================================
--- head/ftp/R-cran-curl/Makefile	(revision 463946)
+++ head/ftp/R-cran-curl/Makefile	(revision 463947)
@@ -1,19 +1,19 @@
 # Created by: TAKATSU Tomonari <tota@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	curl
-PORTVERSION=	2.8.1
+PORTVERSION=	3.1
 CATEGORIES=	ftp
 DISTNAME=	${PORTNAME}_${PORTVERSION}
 
 MAINTAINER=	tota@FreeBSD.org
 COMMENT=	Modern and Flexible Web Client for R
 
 LICENSE=	MIT
 
 BUILD_DEPENDS=	${LOCALBASE}/include/curl/curl.h:ftp/curl
 LIB_DEPENDS=	libcurl.so:ftp/curl
 
 USES=	cran:auto-plist,compiles
 
 .include <bsd.port.mk>
Index: head/ftp/R-cran-curl/distinfo
===================================================================
--- head/ftp/R-cran-curl/distinfo	(revision 463946)
+++ head/ftp/R-cran-curl/distinfo	(revision 463947)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1503899374
-SHA256 (curl_2.8.1.tar.gz) = 554352a56d213a3a32bc262f4662c5a40b1fdcf264da5ecab6116562f9a1ee35
-SIZE (curl_2.8.1.tar.gz) = 409743
+TIMESTAMP = 1520586088
+SHA256 (curl_3.1.tar.gz) = 270f2596be50a11fe43fe63bcacbf4a4aa9c75cc6ebc0d619ac2e52e9497cb95
+SIZE (curl_3.1.tar.gz) = 366086