diff --git a/data/apps/algo_trade.cfg b/data/apps/algo_trade.cfg
index c45865d..718c808 100644
--- a/data/apps/algo_trade.cfg
+++ b/data/apps/algo_trade.cfg
@@ -9,7 +9,7 @@
     , "calendar_session": {
         "trading_hours_url": [
             "GET"
-            , "http://cloud16.cvtt.vpn:8000/api/v1/markets/hours?mic=XNYS&start={start}&end={end}"
+            , "https://trading-calendar.cvtt.net/api/v1/markets/hours?mic=XNYS&start={start}&end={end}"
         ]
     }
     ###### N E W  S E C T I O N (example)
diff --git a/data/apps/cvtt_eqt_alpaca.cfg b/data/apps/cvtt_eqt_alpaca.cfg
index ce93945..06d5137 100644
--- a/data/apps/cvtt_eqt_alpaca.cfg
+++ b/data/apps/cvtt_eqt_alpaca.cfg
@@ -19,7 +19,7 @@
     , "calendar_session": {
         "trading_hours_url": [
             "GET"
-            , "http://cloud16.cvtt.vpn:8000/api/v1/markets/hours?mic=XNYS&start={start}&end={end}"
+            , "https://trading-calendar.cvtt.net/api/v1/markets/hours?mic=XNYS&start={start}&end={end}"
         ]
     }
     , "books": {
diff --git a/data/apps/minimal_md_eqt.cfg b/data/apps/minimal_md_eqt.cfg
index 31881ad..ccdc3f7 100644
--- a/data/apps/minimal_md_eqt.cfg
+++ b/data/apps/minimal_md_eqt.cfg
@@ -3,7 +3,7 @@
     , "calendar_session": {
         "trading_hours_url": [
             "GET"
-            , "http://cloud16.cvtt.vpn:8000/api/v1/markets/hours?mic=XNYS&start={start}&end={end}"
+            , "https://trading-calendar.cvtt.net/api/v1/markets/hours?mic=XNYS&start={start}&end={end}"
         ]
     }
     , "exchanges_settings": {