diff --git a/python-Logbook.changes b/python-Logbook.changes
index d155241..cf6b921 100644
--- a/python-Logbook.changes
+++ b/python-Logbook.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Mar  6 04:05:59 UTC 2025 - Steve Kowalik <steven.kowalik@suse.com>
+
+- Add patch use-pydict-size.patch:
+  * Use PyDict_Size rather then PyList_GET_SIZE on a dict object.
+
 -------------------------------------------------------------------
 Thu Jan  9 09:56:38 UTC 2025 - John Paul Adrian Glaubitz <adrian.glaubitz@suse.com>
 
diff --git a/python-Logbook.spec b/python-Logbook.spec
index dda6b1d..f7e4971 100644
--- a/python-Logbook.spec
+++ b/python-Logbook.spec
@@ -23,6 +23,8 @@ Summary:        A logging replacement for Python
 License:        BSD-3-Clause
 URL:            https://github.com/getlogbook/logbook
 Source:         https://files.pythonhosted.org/packages/source/l/logbook/logbook-%{version}.tar.gz
+# PATCH-FIX-UPSTREAM gh#getlogbook/logbook#413
+Patch0:         use-pydict-size.patch
 BuildRequires:  %{python_module Brotli}
 BuildRequires:  %{python_module Cython}
 BuildRequires:  %{python_module Jinja2}
@@ -62,8 +64,8 @@ export CFLAGS="%{optflags} -fno-strict-aliasing"
 %pyproject_wheel
 
 %install
-%python_expand %fdupes %{buildroot}%{$python_sitearch}
 %pyproject_install
+%python_expand %fdupes %{buildroot}%{$python_sitearch}
 
 %check
 export CFLAGS="%{optflags}"
@@ -74,8 +76,8 @@ kill %%1
 
 %files %{python_files}
 %license LICENSE
-%doc CHANGES
+%doc README.md CHANGES
 %{python_sitearch}/logbook
-%{python_sitearch}/Logbook-%{version}*-info
+%{python_sitearch}/Logbook-%{version}.dist-info
 
 %changelog
diff --git a/use-pydict-size.patch b/use-pydict-size.patch
new file mode 100644
index 0000000..49ea758
--- /dev/null
+++ b/use-pydict-size.patch
@@ -0,0 +1,36 @@
+From db82f93b90b15794fdc720c98eda07bdd273c260 Mon Sep 17 00:00:00 2001
+From: Steve Kowalik <steven@wedontsleep.org>
+Date: Thu, 6 Mar 2025 14:56:42 +1100
+Subject: [PATCH] Use PyDict methods in ContextStackManager
+
+With Python 3.12+, calling PyList_GET_SIZE on a dict object results in an
+assertion error followed by an abort. Correct this by using PyDict_Size
+on the cache object.
+---
+ src/cython/speedups.pyx | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/cython/speedups.pyx b/src/cython/speedups.pyx
+index a4bb55a..3741403 100644
+--- a/src/cython/speedups.pyx
++++ b/src/cython/speedups.pyx
+@@ -21,8 +21,8 @@ from logbook.concurrency import (
+     thread_local,
+ )
+ 
+-from cpython.dict cimport PyDict_Clear, PyDict_SetItem
+-from cpython.list cimport PyList_Append, PyList_GET_SIZE, PyList_Sort
++from cpython.dict cimport PyDict_Clear, PyDict_SetItem, PyDict_Size
++from cpython.list cimport PyList_Append, PyList_Sort
+ from cpython.pythread cimport (
+     WAIT_LOCK,
+     PyThread_acquire_lock,
+@@ -218,7 +218,7 @@ cdef class ContextStackManager:
+ 
+         objects = self._cache.get(tid)
+         if objects is None:
+-            if PyList_GET_SIZE(self._cache) > _MAX_CONTEXT_OBJECT_CACHE:
++            if PyDict_Size(self._cache) > _MAX_CONTEXT_OBJECT_CACHE:
+                 PyDict_Clear(self._cache)
+             objects = self._global[:]
+             objects.extend(getattr(self._thread_context, 'stack', ()))