diff --git a/trains_agent/backend_api/session/session.py b/trains_agent/backend_api/session/session.py
index fb26c55..e4dfe1d 100644
--- a/trains_agent/backend_api/session/session.py
+++ b/trains_agent/backend_api/session/session.py
@@ -43,9 +43,9 @@ class Session(TokenManager):
     _write_session_timeout = (300.0, 300.)
 
     api_version = '2.1'
-    default_host = "https://demoapi.trainsai.io"
-    default_web = "https://demoapp.trainsai.io"
-    default_files = "https://demofiles.trainsai.io"
+    default_host = "https://demoapi.trains.allegro.ai"
+    default_web = "https://demoapp.trains.allegro.ai"
+    default_files = "https://demofiles.trains.allegro.ai"
     default_key = "EGRTCO8JMSIGI6S39GTP43NFWXDQOW"
     default_secret = "x!XTov_G-#vspE*Y(h$Anm&DIc5Ou-F)jsl$PdOyj5wG1&E!Z8"
 
diff --git a/trains_agent/definitions.py b/trains_agent/definitions.py
index d1c25b0..8456167 100644
--- a/trains_agent/definitions.py
+++ b/trains_agent/definitions.py
@@ -90,7 +90,7 @@ VIRTUAL_ENVIRONMENT_PATH = {
 }
 
 DEFAULT_BASE_DIR = normalize_path(CONFIG_DIR, "data_cache")
-DEFAULT_HOST = "https://demoai.trainsai.io"
+DEFAULT_HOST = "https://demoapi.trains.allegro.ai"
 MAX_DATASET_SOURCES_COUNT = 50000
 
 INVALID_WORKER_ID = (400, 1001)