diff --git a/yt_dlp/extractor/iprima.py b/yt_dlp/extractor/iprima.py
index 52f668526..347fec1d5 100644
--- a/yt_dlp/extractor/iprima.py
+++ b/yt_dlp/extractor/iprima.py
@@ -94,7 +94,7 @@ class IPrimaIE(InfoExtractor):
             'client_id': 'prima_sso',
             'grant_type': 'authorization_code',
             'code': code,
-            'redirect_uri': 'https://auth.iprima.cz/sso/auth_check.html'}
+            'redirect_uri': 'https://auth.iprima.cz/sso/auth-check'}
 
         token_data = self._download_json(
             self._TOKEN_URL, None,