diff --git a/tools/idf_py_actions/debug_ext.py b/tools/idf_py_actions/debug_ext.py
index e537d0901f..0d678c994a 100644
--- a/tools/idf_py_actions/debug_ext.py
+++ b/tools/idf_py_actions/debug_ext.py
@@ -374,6 +374,10 @@ def action_extensions(base_actions: Dict, project_path: str) -> Dict:
                 raise SystemExit('Unfortunately, gdbgui is supported only with Python 3.10 or older. '
                                  'See: https://github.com/espressif/esp-idf/issues/10116. '
                                  'Please use "idf.py gdb" or debug in Eclipse/Vscode instead.')
+            if sys.version_info[:2] >= (3, 13) and sys.platform != 'win32':
+                raise SystemExit('Unfortunately, gdbgui is supported only with Python 3.12 or older. '
+                                 'See: https://github.com/cs01/gdbgui/issues/494. '
+                                 'Please use "idf.py gdb" or debug in Eclipse/Vscode instead.')
             raise FatalError('Error starting gdbgui. Please make sure gdbgui has been installed with '
                              '"install.{sh,bat,ps1,fish} --enable-gdbgui" and can be started.', ctx)
 
diff --git a/tools/requirements/requirements.gdbgui.txt b/tools/requirements/requirements.gdbgui.txt
index a00523d1e4..a9ae089b2c 100644
--- a/tools/requirements/requirements.gdbgui.txt
+++ b/tools/requirements/requirements.gdbgui.txt
@@ -3,5 +3,6 @@
 
 # gdbgui Python 3.11 issue https://github.com/cs01/gdbgui/issues/447 was fixed in 0.15.2.0. Windows users need an
 # older Python to use since new gdbgui versions don't support Windows anymore.
-gdbgui; sys_platform != 'win32'
+# Python 3.13 is not supported: https://github.com/cs01/gdbgui/issues/494
+gdbgui; sys_platform != 'win32' and python_version < "3.13"
 gdbgui; sys_platform == 'win32' and python_version < "3.11"