diff --git a/data/apps/cvtt_musvc.cfg b/data/apps/cvtt_musvc.cfg
index 3ae1b62..3d0600f 100644
--- a/data/apps/cvtt_musvc.cfg
+++ b/data/apps/cvtt_musvc.cfg
@@ -241,10 +241,10 @@
             "simulated": true, 
             "exchanges": ["COINBASE_AT"]
         }
-         "debug_mode": { # used when '--debug_mode' 
-            "partial_fill_wait_sec": 3600.0,
-            "full_fill_wait_sec": 3600.0
-        }
+        #  "debug_mode": { # used when '--debug_mode' 
+        #     "partial_fill_wait_sec": 3600.0,
+        #     "full_fill_wait_sec": 3600.0
+        # }
     }
     , "pricer": {
         "name": "PRICER",
@@ -253,7 +253,9 @@
         , "historical_md": {
             "db": {
                 # "cred_key": "TSDB-CLD32-PROD-OHLCV-DIRECT-RO"
-                "cred_key": "TSDB-CLD32-TESTER-DCKR-CMPS"
+                # "cred_key": "TSDB-CLD32-TESTER-DCKR-CMPS"
+                # "cred_key": "TSDB-CLD32-TESTER-DIRECT-RO"
+                "cred_key": "@env{DB_CREDENTIALS_KEY}"
             }
             , "enable_mda_recording": false # RO account is used
         }