diff --git a/devel/glibmm/Makefile b/devel/glibmm/Makefile
index c171a2bda4ee..2045a40bc830 100644
--- a/devel/glibmm/Makefile
+++ b/devel/glibmm/Makefile
@@ -1,28 +1,28 @@
 # Created by: Adam Weinberger <adamw@FreeBSD.org>
 
 PORTNAME=	glibmm
-PORTVERSION=	2.66.2
+PORTVERSION=	2.66.4
 PORTEPOCH=	1
 CATEGORIES=	devel
 MASTER_SITES=	GNOME
 DIST_SUBDIR=	gnome
 
 MAINTAINER=	gnome@FreeBSD.org
 COMMENT=	C++ interfaces for glib2
 
 LICENSE=	LGPL21
 
 USES=		compiler:c++11-lang gettext gnome meson pathfix perl5 \
 		pkgconfig python:3.7+,build shebangfix tar:xz
 USE_GNOME=	glib20 libsigc++20
 USE_LDCONFIG=	yes
 
 SHEBANG_GLOB=	*.py
 
 MESON_ARGS=	-Dbuild-documentation=false
 
 # 2.68 and later are currently incompatible with consumers
 PORTSCOUT=	limit:^2\.66
 PLIST_SUB=	VERSION=2.4
 
 .include <bsd.port.mk>
diff --git a/devel/glibmm/distinfo b/devel/glibmm/distinfo
index 5abbd4ec7d36..32a30cfd5416 100644
--- a/devel/glibmm/distinfo
+++ b/devel/glibmm/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1641718573
-SHA256 (gnome/glibmm-2.66.2.tar.xz) = b2a4cd7b9ae987794cbb5a1becc10cecb65182b9bb841868625d6bbb123edb1d
-SIZE (gnome/glibmm-2.66.2.tar.xz) = 7603104
+TIMESTAMP = 1656141425
+SHA256 (gnome/glibmm-2.66.4.tar.xz) = 199ace5682d81b15a1d565480b4a950682f2db6402c8aa5dd7217d71edff81d5
+SIZE (gnome/glibmm-2.66.4.tar.xz) = 7606108