diff --git a/ChangeLog.md b/ChangeLog.md
index 242a2fa3..4a9b2b05 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+# v2.5.0 (not released yet)
+BUG FIXES
+- increase `AZBLOB_TIMEOUT` to 4h, instead 15m to allow download long size data parts 
+
 # v2.4.15
 BUG FIXES
 - fix `create` and `restore` command for ReplicatedMergeTree tables with `frozen_metadata.txt` parsing
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 2f906b1f..7afdd7a4 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -542,7 +542,7 @@ func DefaultConfig() *Config {
 			BufferSize:        0,
 			MaxBuffers:        3,
 			MaxPartsCount:     5000,
-			Timeout:           "15m",
+			Timeout:           "4h",
 		},
 		S3: S3Config{
 			Region:                  "us-east-1",