diff --git a/textproc/lttoolbox/Makefile b/textproc/lttoolbox/Makefile
index be8e5c2bb804..dd4cb21e79c1 100644
--- a/textproc/lttoolbox/Makefile
+++ b/textproc/lttoolbox/Makefile
@@ -1,34 +1,33 @@
 PORTNAME=	lttoolbox
 DISTVERSION=	3.7.1
 PORTREVISION=	1
 CATEGORIES=	textproc
 MASTER_SITES=	https://github.com/apertium/${PORTNAME}/releases/download/v${DISTVERSION}/
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Tool for lexical, morphological analysis and generation of words
 WWW=		https://wiki.apertium.org/wiki/Lttoolbox
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-BUILD_DEPENDS=	utf8cpp>0:devel/utf8cpp
+BUILD_DEPENDS=	utf8cpp>=4.0.0:devel/utf8cpp
 LIB_DEPENDS=	libicuio.so:devel/icu \
 		libxml2.so:textproc/libxml2
 
-USES=		autoreconf compiler:c++14-lang libtool pathfix pkgconfig tar:bz2
+USES=		autoreconf compiler:c++14-lang libtool localbase pathfix pkgconfig tar:bz2
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 
 INSTALL_TARGET=	install-strip
 
-CFLAGS+=	-I${LOCALBASE}/include/utf8cpp
 LDFLAGS+=	-lpthread
 
 .include <bsd.port.pre.mk>
 
 .if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 160
 EXTRA_PATCHES=	${FILESDIR}/extra-patch-llvm16
 .endif
 
 .include <bsd.port.post.mk>