diff --git a/yt_dlp/extractor/viu.py b/yt_dlp/extractor/viu.py
index d7b0107625..41fa9b52f9 100644
--- a/yt_dlp/extractor/viu.py
+++ b/yt_dlp/extractor/viu.py
@@ -210,7 +210,7 @@ class ViuOTTIE(InfoExtractor):
             'description': 'md5:65aa14cb80e0d18acf829513b6d64297',
             'series': 'Dr. Stone: Stone Wars',
             'series_id': '35837',
-            'thumbnail': 'https://prod-images.viu.com/clip_asset_v6/1165917542/1165917580/e31e9fb2dc0d38db7f6c9b4de1f62d55d5fdfb80',
+            'thumbnail': r're:https?://prod-images\.viu\.com/clip_asset_v6/\d+/\d+/[a-f0-9]+',
 
         },
         'skip': 'Geo-restricted to Indonesia'