diff --git a/devel/rubygem-aws-sdk-synthetics/Makefile b/devel/rubygem-aws-sdk-synthetics/Makefile
index 956330808ff4..84218e134add 100644
--- a/devel/rubygem-aws-sdk-synthetics/Makefile
+++ b/devel/rubygem-aws-sdk-synthetics/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	aws-sdk-synthetics
-PORTVERSION=	1.39.0
+PORTVERSION=	1.40.0
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
@@ -10,7 +10,7 @@ WWW=		https://github.com/aws/aws-sdk-ruby/tree/version-3/gems/aws-sdk-synthetics
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
-RUN_DEPENDS=	rubygem-aws-sdk-core>=3.188.0<4:devel/rubygem-aws-sdk-core \
+RUN_DEPENDS=	rubygem-aws-sdk-core>=3.191.0<4:devel/rubygem-aws-sdk-core \
 		rubygem-aws-sigv4>=1.1<2:devel/rubygem-aws-sigv4
 
 USES=		gem
diff --git a/devel/rubygem-aws-sdk-synthetics/distinfo b/devel/rubygem-aws-sdk-synthetics/distinfo
index 208fb36224e9..1bfb58f8f93a 100644
--- a/devel/rubygem-aws-sdk-synthetics/distinfo
+++ b/devel/rubygem-aws-sdk-synthetics/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1701364424
-SHA256 (rubygem/aws-sdk-synthetics-1.39.0.gem) = 521a44a43d3d91c7657ec2b1f5ef66a599b183c870c0f4714091b44d10f2cf17
-SIZE (rubygem/aws-sdk-synthetics-1.39.0.gem) = 41472
+TIMESTAMP = 1708450290
+SHA256 (rubygem/aws-sdk-synthetics-1.40.0.gem) = 2ab17e26696cf0759356bf58ff98745285754d427eb54febbc794d4825f83ab5
+SIZE (rubygem/aws-sdk-synthetics-1.40.0.gem) = 45568