diff --git a/pkgs/development/python-modules/lxml/libxml-2.12.patch b/pkgs/development/python-modules/lxml/libxml-2.12.patch
deleted file mode 100644
index d0d211c9fe38..000000000000
--- a/pkgs/development/python-modules/lxml/libxml-2.12.patch
+++ /dev/null
@@ -1,94 +0,0 @@
-From 3b8807306d79d2ae2e9fa28c5ecd3b40b32ee65b Mon Sep 17 00:00:00 2001
-From: Stefan Behnel <stefan_ml@behnel.de>
-Date: Wed, 29 Nov 2023 10:28:47 +0100
-Subject: [PATCH] Follow changes in libxml2 2.12 and make xmlError usages
- 'const'. This mostly impacts the error callback functions.
-
----
- src/lxml/extensions.pxi | 4 ++--
- src/lxml/parser.pxi     | 4 ++--
- src/lxml/xmlerror.pxi   | 8 ++++----
- 3 files changed, 8 insertions(+), 8 deletions(-)
-
-diff --git a/src/lxml/extensions.pxi b/src/lxml/extensions.pxi
-index 35a321b7..42b4c4f6 100644
---- a/src/lxml/extensions.pxi
-+++ b/src/lxml/extensions.pxi
-@@ -393,7 +393,7 @@ cdef tuple LIBXML2_XPATH_ERROR_MESSAGES = (
-     b"?? Unknown error ??\n",
- )
- 
--cdef void _forwardXPathError(void* c_ctxt, xmlerror.xmlError* c_error) with gil:
-+cdef void _forwardXPathError(void* c_ctxt, const xmlerror.xmlError* c_error) with gil:
-     cdef xmlerror.xmlError error
-     cdef int xpath_code
-     if c_error.message is not NULL:
-@@ -414,7 +414,7 @@ cdef void _forwardXPathError(void* c_ctxt, xmlerror.xmlError* c_error) with gil:
- 
-     (<_BaseContext>c_ctxt)._error_log._receive(&error)
- 
--cdef void _receiveXPathError(void* c_context, xmlerror.xmlError* error) nogil:
-+cdef void _receiveXPathError(void* c_context, const xmlerror.xmlError* error) nogil:
-     if not __DEBUG:
-         return
-     if c_context is NULL:
-diff --git a/src/lxml/parser.pxi b/src/lxml/parser.pxi
-index 22463c7d..1566b6df 100644
---- a/src/lxml/parser.pxi
-+++ b/src/lxml/parser.pxi
-@@ -626,10 +626,10 @@ cdef _initParserContext(_ParserContext context,
-     if c_ctxt is not NULL:
-         context._initParserContext(c_ctxt)
- 
--cdef void _forwardParserError(xmlparser.xmlParserCtxt* _parser_context, xmlerror.xmlError* error) with gil:
-+cdef void _forwardParserError(xmlparser.xmlParserCtxt* _parser_context, const xmlerror.xmlError* error) with gil:
-     (<_ParserContext>_parser_context._private)._error_log._receive(error)
- 
--cdef void _receiveParserError(void* c_context, xmlerror.xmlError* error) nogil:
-+cdef void _receiveParserError(void* c_context, const xmlerror.xmlError* error) nogil:
-     if __DEBUG:
-         if c_context is NULL or (<xmlparser.xmlParserCtxt*>c_context)._private is NULL:
-             _forwardError(NULL, error)
-diff --git a/src/lxml/xmlerror.pxi b/src/lxml/xmlerror.pxi
-index 1b50444f..4cd745f9 100644
---- a/src/lxml/xmlerror.pxi
-+++ b/src/lxml/xmlerror.pxi
-@@ -66,7 +66,7 @@ cdef class _LogEntry:
-         tree.xmlFree(self._c_path)
- 
-     @cython.final
--    cdef _setError(self, xmlerror.xmlError* error):
-+    cdef _setError(self, const xmlerror.xmlError* error):
-         self.domain   = error.domain
-         self.type     = error.code
-         self.level    = <int>error.level
-@@ -198,7 +198,7 @@ cdef class _BaseErrorLog:
-         pass
- 
-     @cython.final
--    cdef void _receive(self, xmlerror.xmlError* error):
-+    cdef void _receive(self, const xmlerror.xmlError* error):
-         cdef bint is_error
-         cdef _LogEntry entry
-         cdef _BaseErrorLog global_log
-@@ -634,7 +634,7 @@ def use_global_python_log(PyErrorLog log not None):
- 
- 
- # local log functions: forward error to logger object
--cdef void _forwardError(void* c_log_handler, xmlerror.xmlError* error) with gil:
-+cdef void _forwardError(void* c_log_handler, const xmlerror.xmlError* error) with gil:
-     cdef _BaseErrorLog log_handler
-     if c_log_handler is not NULL:
-         log_handler = <_BaseErrorLog>c_log_handler
-@@ -645,7 +645,7 @@ cdef void _forwardError(void* c_log_handler, xmlerror.xmlError* error) with gil:
-     log_handler._receive(error)
- 
- 
--cdef void _receiveError(void* c_log_handler, xmlerror.xmlError* error) nogil:
-+cdef void _receiveError(void* c_log_handler, const xmlerror.xmlError* error) nogil:
-     # no Python objects here, may be called without thread context !
-     if __DEBUG:
-         _forwardError(c_log_handler, error)
--- 
-2.42.0
-