diff --git a/security/py-xmlsec/Makefile b/security/py-xmlsec/Makefile
index 2c03a2c72c82..14e68043b4ce 100644
--- a/security/py-xmlsec/Makefile
+++ b/security/py-xmlsec/Makefile
@@ -1,31 +1,31 @@
 PORTNAME=	xmlsec
 DISTVERSION=	1.3.13
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	security python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Python bindings for XML Security Library
 WWW=		https://github.com/mehcode/python-xmlsec/
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}lxml>=3.8.0:devel/py-lxml@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pkgconfig>=0:devel/py-pkgconfig@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}setuptools_scm>0:devel/py-setuptools_scm@${PY_FLAVOR}
 LIB_DEPENDS=	libltdl.so:devel/libltdl \
 		libxmlsec1-openssl.so:security/xmlsec1
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}hypothesis>0:devel/py-hypothesis@${PY_FLAVOR}
 
 USES=		gnome pkgconfig pytest python
 USE_GNOME=	libxml2 libxslt
 USE_PYTHON=	autoplist distutils flavors
 
 INSTALL_TARGET=	install-strip
 
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/xmlsec*.so
 
 .include <bsd.port.mk>
diff --git a/security/py-xmlsec/files/patch-src_constants.c b/security/py-xmlsec/files/patch-src_constants.c
new file mode 100644
index 000000000000..9acf7084e1ac
--- /dev/null
+++ b/security/py-xmlsec/files/patch-src_constants.c
@@ -0,0 +1,11 @@
+--- src/constants.c.orig	2022-08-20 20:42:41 UTC
++++ src/constants.c
+@@ -316,8 +316,6 @@ int PyXmlSec_ConstantsModule_Init(PyObject* package) {
+     PYXMLSEC_ADD_NS_CONSTANT(XPathNs, "XPATH");
+     PYXMLSEC_ADD_NS_CONSTANT(XPath2Ns, "XPATH2");
+     PYXMLSEC_ADD_NS_CONSTANT(XPointerNs, "XPOINTER");
+-    PYXMLSEC_ADD_NS_CONSTANT(Soap11Ns, "SOAP11");
+-    PYXMLSEC_ADD_NS_CONSTANT(Soap12Ns, "SOAP12");
+     PYXMLSEC_ADD_NS_CONSTANT(NsExcC14N, "EXC_C14N");
+     PYXMLSEC_ADD_NS_CONSTANT(NsExcC14NWithComments, "EXC_C14N_WITH_COMMENT");
+ 
diff --git a/security/py-xmlsec/files/patch-src_enc.c b/security/py-xmlsec/files/patch-src_enc.c
new file mode 100644
index 000000000000..b0efb44c9329
--- /dev/null
+++ b/security/py-xmlsec/files/patch-src_enc.c
@@ -0,0 +1,14 @@
+--- src/enc.c.orig	2023-12-13 20:01:11 UTC
++++ src/enc.c
+@@ -17,6 +17,11 @@
+ #include <xmlsec/xmlenc.h>
+ #include <xmlsec/xmltree.h>
+ 
++// Backwards compatibility with xmlsec 1.2
++#ifndef XMLSEC_KEYINFO_FLAGS_LAX_KEY_SEARCH
++#define XMLSEC_KEYINFO_FLAGS_LAX_KEY_SEARCH 0x00008000
++#endif
++
+ typedef struct {
+     PyObject_HEAD
+     xmlSecEncCtxPtr handle;
diff --git a/security/py-xmlsec/files/patch-src_xmlsec_constants.pyi b/security/py-xmlsec/files/patch-src_xmlsec_constants.pyi
new file mode 100644
index 000000000000..ad8f4f06a8f4
--- /dev/null
+++ b/security/py-xmlsec/files/patch-src_xmlsec_constants.pyi
@@ -0,0 +1,11 @@
+--- src/xmlsec/constants.pyi.orig	2022-08-20 20:42:41 UTC
++++ src/xmlsec/constants.pyi
+@@ -85,8 +85,6 @@ NsExcC14NWithComments: Final[str]
+ Ns: Final[str]
+ NsExcC14N: Final[str]
+ NsExcC14NWithComments: Final[str]
+-Soap11Ns: Final[str]
+-Soap12Ns: Final[str]
+ TransformAes128Cbc: Final[__Transform]
+ TransformAes128Gcm: Final[__Transform]
+ TransformAes192Cbc: Final[__Transform]