diff --git a/devel/rubygem-aws-sdk-mgn/Makefile b/devel/rubygem-aws-sdk-mgn/Makefile
index 2d13dc2af8989..5f84f24eab3ee 100644
--- a/devel/rubygem-aws-sdk-mgn/Makefile
+++ b/devel/rubygem-aws-sdk-mgn/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	aws-sdk-mgn
-PORTVERSION=	1.19.0
+PORTVERSION=	1.21.0
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
@@ -10,7 +10,7 @@ WWW=		https://github.com/aws/aws-sdk-ruby/tree/version-3/gems/aws-sdk-mgn
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
-RUN_DEPENDS=	rubygem-aws-sdk-core>=3.174.0<4:devel/rubygem-aws-sdk-core \
+RUN_DEPENDS=	rubygem-aws-sdk-core>=3.176.0<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-mgn/distinfo b/devel/rubygem-aws-sdk-mgn/distinfo
index 320d11e0df8b7..e841c8ceff1db 100644
--- a/devel/rubygem-aws-sdk-mgn/distinfo
+++ b/devel/rubygem-aws-sdk-mgn/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1685792804
-SHA256 (rubygem/aws-sdk-mgn-1.19.0.gem) = 553c210e5ac5a4c0091b932343c62359a490088bdb8d79c195ae9ab58b806739
-SIZE (rubygem/aws-sdk-mgn-1.19.0.gem) = 66048
+TIMESTAMP = 1688166822
+SHA256 (rubygem/aws-sdk-mgn-1.21.0.gem) = 465394c973f03a5c51611cd3de621ed09de904e66d89a91a680f2adc812c23ab
+SIZE (rubygem/aws-sdk-mgn-1.21.0.gem) = 66560