diff --git a/science/py-dwave-gate/Makefile b/science/py-dwave-gate/Makefile
index b94093de6cd5..552fb14841e4 100644
--- a/science/py-dwave-gate/Makefile
+++ b/science/py-dwave-gate/Makefile
@@ -1,27 +1,31 @@
 PORTNAME=	dwave-gate
-DISTVERSION=	0.3.5
+DISTVERSION=	0.4.0
 CATEGORIES=	science python # quantum-computing
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 DISTNAME=	${PORTNAME:S/-/_/}-${DISTVERSION}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	DWave: Gate model library
 WWW=		https://github.com/dwavesystems/dwave-gate
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PY_SETUPTOOLS} \
-		${PYTHON_PKGNAMEPREFIX}numpy>=1.16:math/py-numpy@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}wheel>0:devel/py-wheel@${PY_FLAVOR}
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}numpy>=1.24.4:math/py-numpy@${PY_FLAVOR}
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}addict>0:devel/py-addict@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}numpy>=2:math/py-numpy@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}pydantic2>=2:devel/py-pydantic2@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}polars>=1.35:misc/py-polars@${PY_FLAVOR}
+TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}asteval>0:devel/py-asteval@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}pytest-mock>0:devel/py-pytest-mock@${PY_FLAVOR}
 
 USES=		python
-USE_PYTHON=	pep517 cython autoplist pytest
+USE_PYTHON=	pep517 autoplist pytest
 
 TEST_ENV=	${MAKE_ENV} PYTHONPATH=${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}
 
-# tests as of 0.3.5: 30 passed, 2 errors in 2.52s
+# tests as of 0.4.0: 300 passed in 2.18s
 
 .include <bsd.port.mk>
diff --git a/science/py-dwave-gate/distinfo b/science/py-dwave-gate/distinfo
index 99cfef23eb8a..7fe53363e695 100644
--- a/science/py-dwave-gate/distinfo
+++ b/science/py-dwave-gate/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1780507360
-SHA256 (dwave_gate-0.3.5.tar.gz) = e638af54bc0dc98e212ce35b629a91b2d69c3282fba33db64554f8d6e80fd168
-SIZE (dwave_gate-0.3.5.tar.gz) = 366648
+TIMESTAMP = 1788794377
+SHA256 (dwave_gate-0.4.0.tar.gz) = c9895ecdf03b55cfea1ccaf4bdcf6d730c032543e4013e6e74a2b2ab11ab0a55
+SIZE (dwave_gate-0.4.0.tar.gz) = 104820
diff --git a/science/py-dwave-gate/files/patch-pyproject.toml b/science/py-dwave-gate/files/patch-pyproject.toml
index 02f8f28f6143..8edd5b2fa72f 100644
--- a/science/py-dwave-gate/files/patch-pyproject.toml
+++ b/science/py-dwave-gate/files/patch-pyproject.toml
@@ -1,11 +1,25 @@
---- pyproject.toml.orig	2025-09-27 18:57:44 UTC
+-- Fix PEP 639 license metadata that is not supported by the version of
+-- setuptools available in the FreeBSD ports tree (devel/py-setuptools).
+-- Use legacy license text declaration instead.
+
+--- pyproject.toml.orig	2026-09-07 15:23:22 UTC
 +++ pyproject.toml
-@@ -3,7 +3,7 @@ requires = [
-     "setuptools>=46.4.0",       # PEP-420 support, PEP-517/518 support
-     "wheel>=0.30.0",            # limited python api support
-     "cython~=3.0",
--    "numpy~=2.0",
-+    "numpy",
+@@ -1,6 +1,7 @@ requires = [
+ [build-system]
+ requires = [
+-    "setuptools>=77.0.3",   # PEP 639
++    "setuptools>=46.4.0",
++    "wheel>=0.30.0",
  ]
  build-backend = "setuptools.build_meta"
  
+@@ -13,8 +14,7 @@ readme = {file = "README.rst", content-type = "text/x-
+     {name = "D-Wave", email = "tools@dwavesys.com"},
+ ]
+ readme = {file = "README.rst", content-type = "text/x-rst"}
+-license = "Apache-2.0"
+-license-files = ["LICEN[CS]E*"]
++license = {text = "Apache-2.0"}
+ classifiers = [
+     "Operating System :: OS Independent",
+     "Programming Language :: Python :: 3 :: Only",