diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6be07dda..327a9414 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ Changelog for FrostFS Node
 - Link object is broadcast throughout the whole container now (#57)
 - Pilorama now can merge multiple batches into one (#2231)
 - Storage engine now can start even when some shard components are unavailable (#2238)
+- `neofs-cli` buffer for object put increased from 4 KiB to 3 MiB (#2243)
 
 ### Fixed
 - Increase payload size metric on shards' `put` operation (#1794)
diff --git a/cmd/frostfs-cli/internal/client/client.go b/cmd/frostfs-cli/internal/client/client.go
index fcfa2b46..71811032 100644
--- a/cmd/frostfs-cli/internal/client/client.go
+++ b/cmd/frostfs-cli/internal/client/client.go
@@ -404,8 +404,7 @@ func PutObject(prm PutObjectPrm) (*PutObjectRes, error) {
 		}
 
 		if prm.rdr != nil {
-			// TODO: (neofs-node#1198) explore better values or configure it
-			const defaultBufferSizePut = 4096
+			const defaultBufferSizePut = 3 << 20 // Maximum chunk size is 3 MiB in the SDK.
 
 			if sz == 0 || sz > defaultBufferSizePut {
 				sz = defaultBufferSizePut