diff --git a/devel/py-cysignals/Makefile b/devel/py-cysignals/Makefile
index 0488db7fd8e4..5162e768dd49 100644
--- a/devel/py-cysignals/Makefile
+++ b/devel/py-cysignals/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	cysignals
-PORTVERSION=	1.12.2
+PORTVERSION=	1.12.3
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -10,7 +10,8 @@ WWW=		https://pypi.org/project/cysignals/
 
 LICENSE=	LGPL3
 
-BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}colorlog>0:devel/py-colorlog@${PY_FLAVOR}	\
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}tomli>0:textproc/py-tomli@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}colorlog>0:devel/py-colorlog@${PY_FLAVOR}	\
 		${PYTHON_PKGNAMEPREFIX}meson-python>0:devel/meson-python@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}colorlog>0:devel/py-colorlog@${PY_FLAVOR}
 
diff --git a/devel/py-cysignals/distinfo b/devel/py-cysignals/distinfo
index 41da810a6398..eb06ee7cc439 100644
--- a/devel/py-cysignals/distinfo
+++ b/devel/py-cysignals/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1737281351
-SHA256 (cysignals-1.12.2.tar.gz) = 407db178fb18a91118ca742ede62000b2bee62b617eb49d26fcdad7e9ba2771a
-SIZE (cysignals-1.12.2.tar.gz) = 65828
+TIMESTAMP = 1742236911
+SHA256 (cysignals-1.12.3.tar.gz) = 89f7626dbf29db5ab3d6eff15a89978f4eb5193c320e9099bcc157dacdefd1eb
+SIZE (cysignals-1.12.3.tar.gz) = 65536