diff --git a/devel/py-oslo.cache/Makefile b/devel/py-oslo.cache/Makefile
index d871839a9017..6e9c34d95517 100644
--- a/devel/py-oslo.cache/Makefile
+++ b/devel/py-oslo.cache/Makefile
@@ -1,31 +1,30 @@
 PORTNAME=	oslo.cache
-PORTVERSION=	3.12.0
+PORTVERSION=	4.2.0
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 DISTNAME=	oslo_cache-${PORTVERSION}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Cache storage for OpenStack projects
 WWW=		https://docs.openstack.org/oslo.cache/latest/ \
 		https://github.com/openstack/oslo.cache
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pbr>=6.1.1:devel/py-pbr@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}setuptools>=0:devel/py-setuptools@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}wheel>=0:devel/py-wheel@${PY_FLAVOR}
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}debtcollector>=3.0.0:devel/py-debtcollector@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}dogpile.cache>=1.3.3:devel/py-dogpile.cache@${PY_FLAVOR} \
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}dogpile.cache>=1.3.3:devel/py-dogpile.cache@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}oslo.config>=8.1.0:devel/py-oslo.config@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}oslo.i18n>=5.0.0:devel/py-oslo.i18n@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}oslo.log>=4.2.1:devel/py-oslo.log@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}oslo.utils>=4.2.0:devel/py-oslo.utils@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	autoplist concurrent pep517
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/py-oslo.cache/distinfo b/devel/py-oslo.cache/distinfo
index b5228baf7a8a..8c9b15e89a30 100644
--- a/devel/py-oslo.cache/distinfo
+++ b/devel/py-oslo.cache/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1757120690
-SHA256 (oslo_cache-3.12.0.tar.gz) = b994e62b1fef31913e94c62e4e5fbc289414ce45523caf62870be2bcadf4515c
-SIZE (oslo_cache-3.12.0.tar.gz) = 77217
+TIMESTAMP = 1779455567
+SHA256 (oslo_cache-4.2.0.tar.gz) = 3defc1f43f34b1c7dca4d7c9ce41a3476f50186aff239a2ac9d71ea726d1f29b
+SIZE (oslo_cache-4.2.0.tar.gz) = 70810
diff --git a/devel/py-oslo.cache/files/patch-pyproject.toml b/devel/py-oslo.cache/files/patch-pyproject.toml
new file mode 100644
index 000000000000..8ad179739701
--- /dev/null
+++ b/devel/py-oslo.cache/files/patch-pyproject.toml
@@ -0,0 +1,11 @@
+--- pyproject.toml.orig	2026-05-20 09:00:49 UTC
++++ pyproject.toml
+@@ -9,7 +9,7 @@ readme = {file = "README.rst", content-type = "text/x-
+     {name = "OpenStack", email = "openstack-discuss@lists.openstack.org"},
+ ]
+ readme = {file = "README.rst", content-type = "text/x-rst"}
+-license = "Apache-2.0"
++license = {text = "Apache-2.0"}
+ dynamic = ["version", "dependencies"]
+ requires-python = ">=3.11"
+ classifiers = [