diff --git a/src/pipx/package_specifier.py b/src/pipx/package_specifier.py
index 26ced4f471..e3b1985af2 100644
--- a/src/pipx/package_specifier.py
+++ b/src/pipx/package_specifier.py
@@ -9,8 +9,9 @@
 import logging
 import re
 import urllib.parse
+from dataclasses import dataclass
 from pathlib import Path
-from typing import List, NamedTuple, Optional, Set, Tuple
+from typing import List, Optional, Set, Tuple
 
 from packaging.requirements import InvalidRequirement, Requirement
 from packaging.specifiers import SpecifierSet
@@ -24,7 +25,8 @@
 ARCHIVE_EXTENSIONS = (".whl", ".tar.gz", ".zip")
 
 
-class ParsedPackage(NamedTuple):
+@dataclass(frozen=True)
+class ParsedPackage:
     valid_pep508: Optional[Requirement]
     valid_url: Optional[str]
     valid_local_path: Optional[str]
diff --git a/src/pipx/util.py b/src/pipx/util.py
index e5fd72f276..7b18320d1a 100644
--- a/src/pipx/util.py
+++ b/src/pipx/util.py
@@ -7,12 +7,12 @@
 import subprocess
 import sys
 import textwrap
+from dataclasses import dataclass
 from pathlib import Path
 from typing import (
     Any,
     Dict,
     List,
-    NamedTuple,
     NoReturn,
     Optional,
     Pattern,
@@ -36,7 +36,8 @@ def __init__(self, message: str, wrap_message: bool = True):
             super().__init__(message)
 
 
-class RelevantSearch(NamedTuple):
+@dataclass(frozen=True)
+class RelevantSearch:
     pattern: Pattern[str]
     category: str