diff --git a/yt_dlp/extractor/niconico.py b/yt_dlp/extractor/niconico.py
index 82635b506..53c502ec6 100644
--- a/yt_dlp/extractor/niconico.py
+++ b/yt_dlp/extractor/niconico.py
@@ -155,7 +155,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 320,
             'genres': ['未設定'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:5',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1173108780,
             'upload_date': '20070305',
@@ -179,7 +179,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 219,
             'genres': ['ゲーム'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:3',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1256580802,
             'upload_date': '20091026',
@@ -203,7 +203,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 216,
             'genres': ['ゲーム'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:4',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1212935292,
             'upload_date': '20080608',
@@ -227,7 +227,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 586,
             'genres': ['エンターテイメント'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:3',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1198637246,
             'upload_date': '20071226',
@@ -251,7 +251,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 114,
             'genres': ['アニメ'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:4',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1609146000,
             'upload_date': '20201228',
@@ -301,7 +301,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 63,
             'genres': ['音楽・サウンド'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:5',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1668394800,
             'upload_date': '20221114',
@@ -326,7 +326,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 1931,
             'genres': ['ラジオ'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:5',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1601028000,
             'upload_date': '20200925',
@@ -351,7 +351,7 @@ class NiconicoIE(NiconicoBaseIE):
             'duration': 1881,
             'genres': ['ラジオ'],
             'like_count': int,
-            'tags': list,
+            'tags': 'mincount:7',
             'thumbnail': r're:https?://img\.cdn\.nimg\.jp/s/nicovideo/thumbnails/.+',
             'timestamp': 1725361200,
             'upload_date': '20240903',