diff --git a/ydb/core/tx/columnshard/common/limits.h b/ydb/core/tx/columnshard/common/limits.h
index bef0c657b0de..b30432dfb2fd 100644
--- a/ydb/core/tx/columnshard/common/limits.h
+++ b/ydb/core/tx/columnshard/common/limits.h
@@ -4,7 +4,7 @@
 namespace NKikimr::NOlap {
 class TGlobalLimits {
 public:
-    static constexpr inline ui64 TxWriteLimitBytes = 312 * 1024 * 1024;
+    static constexpr inline ui64 TxWriteLimitBytes = 256 * 1024 * 1024;
     static constexpr inline ui64 TTLCompactionMemoryLimit = 1ULL << 30;
     static constexpr inline ui64 InsertCompactionMemoryLimit = 1ULL << 30;
     static constexpr inline ui64 GeneralCompactionMemoryLimit = 3ULL << 30;