diff --git a/yt_dlp/extractor/playerfm.py b/yt_dlp/extractor/playerfm.py
index 9b0bcde58..e43de38a9 100644
--- a/yt_dlp/extractor/playerfm.py
+++ b/yt_dlp/extractor/playerfm.py
@@ -5,7 +5,7 @@
 
 
 class PlayerFmIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www.)?player.fm/(?:series)?/[a-z\d-]+/(?P<id>[a-z\d-]+)'
+    _VALID_URL = r'(?P<url>https?://(?:www\.)?player\.fm/(?:series/)?[\w-]+/(?P<id>[\w-]+))'
     _TESTS = [{
         'url': 'https://player.fm/series/chapo-trap-house/movie-mindset-33-casino-feat-felix',
         'info_dict': {