https://github.com/tox-dev/pipdeptree/pull/302

From 8a2ccfe062d8978f010e2e4bd3f8e8b9e46ecbce Mon Sep 17 00:00:00 2001
From: Alfred Wingate <parona@protonmail.com>
Date: Tue, 14 Nov 2023 08:36:09 +0200
Subject: [PATCH] Expect hpy in pypy versions >= 7.3.3

Signed-off-by: Alfred Wingate <parona@protonmail.com>
--- a/tests/test_non_host.py
+++ b/tests/test_non_host.py
@@ -33,7 +33,11 @@ def test_custom_interpreter(
     if implementation == "CPython":
         expected = {"pip", "setuptools", "wheel"}
     elif implementation == "PyPy":
-        expected = {"cffi", "greenlet", "pip", "readline", "setuptools", "wheel"}
+        # hpy added in 7.3.2, enabled in 7.3.3
+        if sys.pypy_version_info >= (7, 3, 3):
+            expected = {"cffi", "greenlet", "hpy", "pip", "readline", "setuptools", "wheel"}
+        else:
+            expected = {"cffi", "greenlet", "pip", "readline", "setuptools", "wheel"}
     else:
         raise ValueError(implementation)
     if sys.version_info >= (3, 12):
-- 
2.42.1