diff --git a/.gitignore b/.gitignore
index 9e96b0a..0e75349 100644
--- a/.gitignore
+++ b/.gitignore
@@ -65,3 +65,4 @@ Cython-0.12.1.tar.gz
 /Cython-3.0.3.tar.gz
 /Cython-3.0.4.tar.gz
 /Cython-3.0.5.tar.gz
+/Cython-3.0.6.tar.gz
diff --git a/5791.patch b/5791.patch
deleted file mode 100644
index 6b6286b..0000000
--- a/5791.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From add379d9df149149e3718bd8f71945b7d02fcf4e Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Miro=20Hron=C4=8Dok?= <miro@hroncok.cz>
-Date: Wed, 1 Nov 2023 21:32:40 +0100
-Subject: [PATCH] Fix C++17 error: standard attributes in middle of
- decl-specifiers (CYTHON_UNUSED)
-
-This is only relevant on Python 3.13+
-
-Fixes https://github.com/cython/cython/issues/5790
----
- Cython/Utility/FunctionArguments.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/Cython/Utility/FunctionArguments.c b/Cython/Utility/FunctionArguments.c
-index 5050a094a88..0dc89c638ab 100644
---- a/Cython/Utility/FunctionArguments.c
-+++ b/Cython/Utility/FunctionArguments.c
-@@ -505,7 +505,7 @@ static int __Pyx_MergeKeywords(PyObject *kwdict, PyObject *source_mapping) {
-     #define __Pyx_KwValues_FASTCALL(args, nargs) ((args) + (nargs))
-     static CYTHON_INLINE PyObject * __Pyx_GetKwValue_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues, PyObject *s);
- #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030d0000
--    static CYTHON_UNUSED PyObject *__Pyx_KwargsAsDict_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues);/*proto*/
-+    CYTHON_UNUSED static PyObject *__Pyx_KwargsAsDict_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues);/*proto*/
-   #else
-     #define __Pyx_KwargsAsDict_FASTCALL(kw, kwvalues) _PyStack_AsDict(kwvalues, kw)
-   #endif
-@@ -563,7 +563,7 @@ static CYTHON_INLINE PyObject * __Pyx_GetKwValue_FASTCALL(PyObject *kwnames, PyO
- }
- 
- #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030d0000
--static CYTHON_UNUSED PyObject *__Pyx_KwargsAsDict_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues) {
-+CYTHON_UNUSED static PyObject *__Pyx_KwargsAsDict_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues) {
-     Py_ssize_t i, nkwargs = PyTuple_GET_SIZE(kwnames);
-     PyObject *dict;
- 
diff --git a/Cython.spec b/Cython.spec
index e8ad94e..c79cf60 100644
--- a/Cython.spec
+++ b/Cython.spec
@@ -5,7 +5,7 @@
 %bcond cython_compile 1
 
 Name:           Cython
-Version:        3.0.5
+Version:        3.0.6
 Release:        1%{?dist}
 Summary:        Language for writing Python extension modules
 
@@ -13,10 +13,6 @@ License:        Apache-2.0
 URL:            http://www.cython.org
 Source:         https://github.com/cython/cython/archive/%{version}/Cython-%{version}.tar.gz
 
-# Fix C++17 error: standard attributes in middle of decl-specifiers (CYTHON_UNUSED)
-# This is only relevant on Python 3.13+
-Patch:          https://github.com/cython/cython/pull/5791.patch
-
 BuildRequires:  python3-devel
 
 %if %{with tests}
@@ -122,6 +118,10 @@ Provides:       bundled(python3dist(tempita))
 
 
 %changelog
+* Thu Nov 30 2023 Miro Hrončok <mhroncok@redhat.com> - 3.0.6-1
+- Update to 3.0.6
+- Fixes: rhbz#2251973
+
 * Tue Oct 31 2023 Miro Hrončok <mhroncok@redhat.com> - 3.0.5-1
 - Update to 3.0.5
 
diff --git a/sources b/sources
index 2b43564..2867e9c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Cython-3.0.5.tar.gz) = 585d3fe810ace55278fcc6ea4508b3b5259320f92998cd688da787cd5f88ac5fc2467025f20da6d968969eb3296ae9c517136d24a4dbb475441271227968f6be
+SHA512 (Cython-3.0.6.tar.gz) = f1d33775166d0b6541ea98bee5d4186fc6128aad788323224397c1f3ba0a058141ac84a8b3baa4885204dcbf0979141bc4b5316342003e96208952f040f31753