diff --git a/math/cimod/Makefile b/math/cimod/Makefile
index 9e4989a51f42..e8defb572c34 100644
--- a/math/cimod/Makefile
+++ b/math/cimod/Makefile
@@ -1,31 +1,31 @@
 PORTNAME=	cimod
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.4.39
+DISTVERSION=	1.4.40
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ header-only library for a binary quadratic models
 WWW=		https://github.com/OpenJij/cimod
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	nlohmann-json>0:devel/nlohmann-json
 RUN_DEPENDS=	nlohmann-json>0:devel/nlohmann-json
 TEST_DEPENDS=	git:devel/git # to clone googletest
 
 USES=		cmake:testing compiler:c++17-lang eigen:3,build,run
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	OpenJij
 
 CMAKE_ON=	CIMOD_INSTALL # doesn't do anything, see https://github.com/OpenJij/cimod/issues/103
 CMAKE_OFF=	CIMOD_TEST CIMOD_DOCS
 CMAKE_TESTING_ON=	CIMOD_TEST
 
 NO_ARCH=	yes
 
 do-install: # see https://github.com/OpenJij/cimod/issues/103
 	cd ${WRKSRC}/include && ${COPYTREE_SHARE} ${PORTNAME} ${STAGEDIR}${PREFIX}/include
 
 .include <bsd.port.mk>
diff --git a/math/cimod/distinfo b/math/cimod/distinfo
index 8180b57a4601..e354ced5e77d 100644
--- a/math/cimod/distinfo
+++ b/math/cimod/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1664941585
-SHA256 (OpenJij-cimod-v1.4.39_GH0.tar.gz) = dd828a2125ecf3ca198fc4a4141dadc6719e3f555ea1ea4f19ab3980a7ef781e
-SIZE (OpenJij-cimod-v1.4.39_GH0.tar.gz) = 139684
+TIMESTAMP = 1665939478
+SHA256 (OpenJij-cimod-v1.4.40_GH0.tar.gz) = 4952034c2a59b4833f335c7ca2e507e60949bf997151dff7ee722c980ada3b7e
+SIZE (OpenJij-cimod-v1.4.40_GH0.tar.gz) = 139684