diff --git a/www/rubygem-cal-heatmap-rails/Makefile b/www/rubygem-cal-heatmap-rails/Makefile
index 6bf03ac8b8a5..b20789738033 100644
--- a/www/rubygem-cal-heatmap-rails/Makefile
+++ b/www/rubygem-cal-heatmap-rails/Makefile
@@ -11,10 +11,9 @@ COMMENT=	Calendar heatmap assets for Rails
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
-RUN_DEPENDS=	rubygem-d3_rails>0:${PORTSDIR}/www/rubygem-d3_rails
+RUN_DEPENDS=	rubygem-d3_rails>=3.4.6:${PORTSDIR}/www/rubygem-d3_rails
 
 NO_ARCH=	yes
-
 USE_RUBY=	yes
 USE_RUBYGEMS=	yes
 RUBYGEM_AUTOPLIST=	yes