diff --git a/tests/test_prompt.py b/tests/test_prompt.py
index 5df732d0..fff703fd 100644
--- a/tests/test_prompt.py
+++ b/tests/test_prompt.py
@@ -56,6 +56,10 @@
     reason="requires pty",
 )
 
+_skip_py313beta = pytest.mark.skipif(
+    sys.version_info >= (3, 13), reason="broken in python 3.13 beta"
+)
+
 
 @_requires_pty
 async def test_prompt_python_pty():
@@ -252,6 +256,7 @@ async def test_prompt_unix_shell_interactive():
     assert bool(repl.result)
 
 
+@_skip_py313beta
 async def test_prompt_asyncio_repl():
     "Test the prompt class with the asyncio REPL."
     cmd = sh(sys.executable, "-m", "asyncio").stderr(sh.STDOUT)
@@ -318,6 +323,7 @@ async def test_prompt_python_ps1_newline():
     assert bool(repl.result)
 
 
+@_skip_py313beta
 async def test_prompt_asyncio_repl_expect():
     "Test the prompt class with the asyncio REPL and the expect() function."
     cmd = sh(sys.executable, "-m", "asyncio").stderr(sh.STDOUT)
diff --git a/tests/test_readme.py b/tests/test_readme.py
index 8a29b0f2..d5bf1143 100644
--- a/tests/test_readme.py
+++ b/tests/test_readme.py
@@ -11,6 +11,11 @@
 from shellous.log import LOGGER
 from shellous.prompt import Prompt
 
+_skip_py313beta = pytest.mark.skipif(
+    sys.version_info >= (3, 13), reason="broken in python 3.13 beta"
+)
+
+
 # Custom Python REPL prompt.
 _PROMPT = "<+=+=+>"
 
@@ -66,6 +71,7 @@ async def run_asyncio_repl(cmds, logfile=None):
     return output
 
 
+@_skip_py313beta
 async def test_run_asyncio_repl():
     "Test asyncio REPL with a short list of commands."
     result = await run_asyncio_repl(
@@ -144,6 +150,7 @@ def test_parse_readme():
     ]
 
 
+@_skip_py313beta
 @pytest.mark.skipif(sys.platform == "win32", reason="win32")
 async def test_readme(tmp_path):
     "Test that the REPL commands in the README.md file actually work."