diff --git a/devel/R-cran-data.table/Makefile b/devel/R-cran-data.table/Makefile
index 34a8aa0ea207..100dbe683927 100644
--- a/devel/R-cran-data.table/Makefile
+++ b/devel/R-cran-data.table/Makefile
@@ -1,27 +1,25 @@
 PORTNAME=	data.table
-DISTVERSION=	1.16.0
+DISTVERSION=	1.15.4
 CATEGORIES=	devel
 DISTNAME=	${PORTNAME}_${DISTVERSION}
 
 MAINTAINER=	eduardo@FreeBSD.org
 COMMENT=	Extension of Data.frame
 WWW=		https://cran.r-project.org/web/packages/data.table/
 
 LICENSE=	MPL20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cran:auto-plist,compiles pkgconfig
 
-TESTING_UNSAFE=	https://github.com/Rdatatable/data.table/issues/6559
-
 NO_ARCH_IGNORE=	data_table.so
 
 OPTIONS_DEFINE=		OPENMP
 OPTIONS_DEFAULT=	OPENMP
 
 OPENMP_CONFIGURE_ENABLE=	openmp
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/R/library/data.table/libs/data_table.so
 
 .include <bsd.port.mk>
diff --git a/devel/R-cran-data.table/distinfo b/devel/R-cran-data.table/distinfo
index dfc347728df6..497612d9aa61 100644
--- a/devel/R-cran-data.table/distinfo
+++ b/devel/R-cran-data.table/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1728300398
-SHA256 (data.table_1.16.0.tar.gz) = 58f8aec50099de80d84faa50295c17295d465f669be79b46c3c7ca18c56ef9cd
-SIZE (data.table_1.16.0.tar.gz) = 5302544
+TIMESTAMP = 1711960872
+SHA256 (data.table_1.15.4.tar.gz) = ab8065ff946d59ecaaf5eaf91a975495c07c30caad97a71205c72e41a740cb53
+SIZE (data.table_1.15.4.tar.gz) = 5387593