diff --git a/misc/py-langchain/Makefile b/misc/py-langchain/Makefile
index 222f6a6c6e8b..bf7c8967d1fd 100644
--- a/misc/py-langchain/Makefile
+++ b/misc/py-langchain/Makefile
@@ -1,25 +1,29 @@
 PORTNAME=	langchain
-DISTVERSION=	1.3.4
+DISTVERSION=	1.3.9
 CATEGORIES=	misc python # machine-learning
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	LangChain: Building applications with LLMs through composability
 WWW=		https://python.langchain.com/docs/introduction/ \
 		https://github.com/langchain-ai/langchain
 
 LICENSE=	MIT
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}hatchling>0:devel/py-hatchling@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}wheel>0:devel/py-wheel@${PY_FLAVOR}
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}langchain-core>=1.4.0:misc/py-langchain-core@${PY_FLAVOR} \
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}langchain-core>=1.4.6:misc/py-langchain-core@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}langgraph>=1.2.4:misc/py-langgraph@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pydantic2>=2.7.4:devel/py-pydantic2@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	pep517 autoplist pytest
 
 NO_ARCH=	yes
 
+TEST_ENV=	${MAKE_ENV} PYTHONPATH=${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}
+
+# tests as of 1.3.9: 59 failed, 962 passed, 39 skipped, 9 warnings in 16.54s
+
 .include <bsd.port.mk>
diff --git a/misc/py-langchain/distinfo b/misc/py-langchain/distinfo
index d1a86d8d66cf..6ad9a4cd081d 100644
--- a/misc/py-langchain/distinfo
+++ b/misc/py-langchain/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1780500489
-SHA256 (langchain-1.3.4.tar.gz) = d6e0654c22848925534f5c0a706f9be481bb09a619ec60a738fbd1e5502e457a
-SIZE (langchain-1.3.4.tar.gz) = 606617
+TIMESTAMP = 1781401945
+SHA256 (langchain-1.3.9.tar.gz) = 9b14ef0db9ef314299ded858b22ca2a40b8f1b05c8c9cb6b82d53a53075fef00
+SIZE (langchain-1.3.9.tar.gz) = 631514