diff --git a/science/py-chempy/Makefile b/science/py-chempy/Makefile
index c884ce537fbd8..e3f9a333329c9 100644
--- a/science/py-chempy/Makefile
+++ b/science/py-chempy/Makefile
@@ -1,6 +1,5 @@
 PORTNAME=	chempy
-DISTVERSION=	0.8.2
-PORTREVISION=	2
+DISTVERSION=	0.8.3
 CATEGORIES=	science python # chemistry
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -27,10 +26,11 @@ BUILD_DEPENDS=	${PY_DEPENDS}
 RUN_DEPENDS=	${PY_DEPENDS}
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}black>0:devel/py-black@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pytest-cov>0:devel/py-pytest-cov@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}pytest-flakes>0:devel/py-pytest-flakes@${PY_FLAVOR}
+		${PYTHON_PKGNAMEPREFIX}pytest-flakes>0:devel/py-pytest-flakes@${PY_FLAVOR} \
+		gsl>0:math/gsl
 
-USES=		python
-USE_PYTHON=	distutils autoplist pytest
+USES=		localbase:ldflags python # localbase and math/gsl are only for tests
+USE_PYTHON=	distutils autoplist pytest # 5 tests fail, see https://github.com/bjodah/chempy/issues/222
 
 NO_ARCH=	yes
 
diff --git a/science/py-chempy/distinfo b/science/py-chempy/distinfo
index 54b614c1c8ea3..e3ed0aed9cb42 100644
--- a/science/py-chempy/distinfo
+++ b/science/py-chempy/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1632243682
-SHA256 (chempy-0.8.2.tar.gz) = cf4176c3a642f0f4db796a7d612f145ec99ce9c73a8d98ea413c5b7f966c43bf
-SIZE (chempy-0.8.2.tar.gz) = 406701
+TIMESTAMP = 1689572688
+SHA256 (chempy-0.8.3.tar.gz) = 8f7bfb5066969019556d6191b391794742214430bf330bbc9929f5d454ca072b
+SIZE (chempy-0.8.3.tar.gz) = 184646