diff --git a/test/test_youtube_signature.py b/test/test_youtube_signature.py
index 44d06cc55..13436f088 100644
--- a/test/test_youtube_signature.py
+++ b/test/test_youtube_signature.py
@@ -15,7 +15,7 @@
 
 from test.helper import FakeYDL, is_download_test
 from yt_dlp.extractor import YoutubeIE
-from yt_dlp.jsinterp import NativeJSI
+from yt_dlp.jsinterp import JSInterpreter
 
 _SIG_TESTS = [
     (
@@ -274,7 +274,7 @@ def signature(jscode, sig_input):
 def n_sig(jscode, sig_input):
     ie = YoutubeIE(FakeYDL())
     funcname = ie._extract_n_function_name(jscode)
-    jsi = NativeJSI(jscode)
+    jsi = JSInterpreter(jscode)
     func = jsi.extract_function_from_code(*ie._fixup_n_function_code(*jsi.extract_function_code(funcname)))
     return func([sig_input])
 
diff --git a/yt_dlp/extractor/youtube.py b/yt_dlp/extractor/youtube.py
index 553bbcde7..fa73af7bb 100644
--- a/yt_dlp/extractor/youtube.py
+++ b/yt_dlp/extractor/youtube.py
@@ -20,7 +20,7 @@
 import urllib.parse
 
 from .common import InfoExtractor, SearchInfoExtractor
-from ..jsinterp import NativeJSI, PhantomJSwrapper
+from ..jsinterp import JSInterpreter, PhantomJSwrapper
 from ..networking.exceptions import HTTPError, network_exceptions
 from ..utils import (
     NO_DEFAULT,
@@ -3169,7 +3169,7 @@ def _parse_sig_js(self, jscode):
              r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('),
             jscode, 'Initial JS player signature function name', group='sig')
 
-        jsi = NativeJSI(jscode)
+        jsi = JSInterpreter(jscode)
         initial_function = jsi.extract_function(funcname)
         return lambda s: initial_function([s])
 
@@ -3213,7 +3213,7 @@ def _decrypt_nsig(self, s, video_id, player_url):
         try:
             extract_nsig = self._cached(self._extract_n_function_from_code, 'nsig func', player_url)
             ret = extract_nsig(jsi, func_code)(s)
-        except NativeJSI.Exception as e:
+        except JSInterpreter.Exception as e:
             try:
                 jsi = PhantomJSwrapper(self, timeout=5000)
             except ExtractorError:
@@ -3283,7 +3283,7 @@ def _extract_n_function_code(self, video_id, player_url):
         player_id = self._extract_player_info(player_url)
         func_code = self.cache.load('youtube-nsig', player_id, min_ver='2024.07.09')
         jscode = func_code or self._load_player(video_id, player_url)
-        jsi = NativeJSI(jscode)
+        jsi = JSInterpreter(jscode)
 
         if func_code:
             return jsi, player_id, func_code
@@ -3302,13 +3302,13 @@ def _extract_n_function_from_code(self, jsi, func_code):
         def extract_nsig(s):
             try:
                 ret = func([s])
-            except NativeJSI.Exception:
+            except JSInterpreter.Exception:
                 raise
             except Exception as e:
-                raise NativeJSI.Exception(traceback.format_exc(), cause=e)
+                raise JSInterpreter.Exception(traceback.format_exc(), cause=e)
 
             if ret.startswith('enhanced_except_') or ret.endswith(s):
-                raise NativeJSI.Exception('Signature function returned an exception')
+                raise JSInterpreter.Exception('Signature function returned an exception')
             return ret
 
         return extract_nsig
@@ -4156,7 +4156,7 @@ def build_fragments(f):
                     })
                 except ExtractorError as e:
                     phantomjs_hint = ''
-                    if isinstance(e, NativeJSI.Exception):
+                    if isinstance(e, JSInterpreter.Exception):
                         phantomjs_hint = (f'         Install {self._downloader._format_err("PhantomJS", self._downloader.Styles.EMPHASIS)} '
                                           f'to workaround the issue. {PhantomJSwrapper.INSTALL_HINT}\n')
                     if player_url:
diff --git a/yt_dlp/jsinterp/__init__.py b/yt_dlp/jsinterp/__init__.py
index 94b471329..2477f0774 100644
--- a/yt_dlp/jsinterp/__init__.py
+++ b/yt_dlp/jsinterp/__init__.py
@@ -1,10 +1,10 @@
-from .native import JSInterpreter as NativeJSI
+from .native import JSInterpreter
 from .external import PhantomJSwrapper, DenoJSI, PuppeteerJSI
 from .common import _JSI_PREFERENCES, _JSI_HANDLERS, JSInterp
 
 
 __all__ = [
-    NativeJSI,
+    JSInterpreter,
     PhantomJSwrapper,
     DenoJSI,
     PuppeteerJSI,
diff --git a/yt_dlp/jsinterp/common.py b/yt_dlp/jsinterp/common.py
index b898a2a21..d6594fd42 100644
--- a/yt_dlp/jsinterp/common.py
+++ b/yt_dlp/jsinterp/common.py
@@ -240,7 +240,7 @@ def _base_preference(handler: JSI, *args):
 
 if typing.TYPE_CHECKING:
     from ..YoutubeDL import YoutubeDL
-    JsiClass = typing.TypeVar('JsiClass', bound=typing.Type[JSI])
+    JsiClass = typing.TypeVar('JsiClass', bound=type[JSI])
 
     class JSIPreference(typing.Protocol):
         def __call__(self, handler: JSI, method_name: str, *args, **kwargs) -> int: