diff --git a/www/py-dj31-django-auth-ldap/Makefile b/www/py-dj31-django-auth-ldap/Makefile
index 3556fd64114c..75c78e02e9e8 100644
--- a/www/py-dj31-django-auth-ldap/Makefile
+++ b/www/py-dj31-django-auth-ldap/Makefile
@@ -1,37 +1,45 @@
 # Created by: Alexander Kriventsov <avk@vl.ru>
 
 PORTNAME=	django-auth-ldap
-PORTVERSION=	2.3.0
+PORTVERSION=	2.4.0
 CATEGORIES=	www security python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}dj31-
 
 MAINTAINER=	kai@FreeBSD.org
 COMMENT=	LDAP integration for django.contrib.auth
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}setuptools_scm>=3.4:devel/py-setuptools_scm@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}wheel>0:devel/py-wheel@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}django31>=2.2:www/py-django31@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}ldap>=3.1:net/py-ldap@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 PORTDOCS=	*
 CONFLICTS_INSTALL=	${PYTHON_PKGNAMEPREFIX}django-auth-ldap
 
 OPTIONS_DEFINE=	DOCS
 DOCS_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}sphinx>=0,1:textproc/py-sphinx@${PY_FLAVOR}
 DOCS_VARS=		PYDISTUTILS_BUILD_TARGET+="build_sphinx -a -E"
 
+.include <bsd.port.pre.mk>
+
+# Set a locale to avoid build/configure errors.  The UTF-8 mode is enabled by
+# default when the locale is C since Python 3.7.
+.if ${PYTHON_REL} < 3700
+USE_LOCALE=	en_US.UTF-8
+.endif
+
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	(cd ${WRKSRC}/build/sphinx/html && \
  		${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR} \
 			"! -name .buildinfo -and ! -name objects.inv")
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>
diff --git a/www/py-dj31-django-auth-ldap/distinfo b/www/py-dj31-django-auth-ldap/distinfo
index 15a161187d69..3ad4959b7520 100644
--- a/www/py-dj31-django-auth-ldap/distinfo
+++ b/www/py-dj31-django-auth-ldap/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1614512795
-SHA256 (django-auth-ldap-2.3.0.tar.gz) = 5894317122a086c9955ed366562869a81459cf6b663636b152857bb5d3a0a3b7
-SIZE (django-auth-ldap-2.3.0.tar.gz) = 53383
+TIMESTAMP = 1617818253
+SHA256 (django-auth-ldap-2.4.0.tar.gz) = 60fcbfc3141c99c3c49d3ccd7311a3992a231c319d94b6d2c143968f63676676
+SIZE (django-auth-ldap-2.4.0.tar.gz) = 53523