diff --git a/core/src/main/java/tech/ydb/core/impl/BaseGrpcTransport.java b/core/src/main/java/tech/ydb/core/impl/BaseGrpcTransport.java
index ab41dfd78..08b747930 100644
--- a/core/src/main/java/tech/ydb/core/impl/BaseGrpcTransport.java
+++ b/core/src/main/java/tech/ydb/core/impl/BaseGrpcTransport.java
@@ -43,7 +43,7 @@ public abstract class BaseGrpcTransport implements GrpcTransport {
     protected volatile boolean shutdown = false;
 
     abstract AuthCallOptions getAuthCallOptions();
-    abstract GrpcChannel getChannel(GrpcRequestSettings settings);
+    protected abstract GrpcChannel getChannel(GrpcRequestSettings settings);
     abstract void updateChannelStatus(GrpcChannel channel, io.grpc.Status status);
 
     @Override
diff --git a/core/src/main/java/tech/ydb/core/impl/FixedCallOptionsTransport.java b/core/src/main/java/tech/ydb/core/impl/FixedCallOptionsTransport.java
index b971be86a..43c832929 100644
--- a/core/src/main/java/tech/ydb/core/impl/FixedCallOptionsTransport.java
+++ b/core/src/main/java/tech/ydb/core/impl/FixedCallOptionsTransport.java
@@ -58,7 +58,7 @@ public AuthCallOptions getAuthCallOptions() {
     }
 
     @Override
-    GrpcChannel getChannel(GrpcRequestSettings settings) {
+    protected GrpcChannel getChannel(GrpcRequestSettings settings) {
         return channel;
     }
 
diff --git a/core/src/main/java/tech/ydb/core/impl/MultiChannelTransport.java b/core/src/main/java/tech/ydb/core/impl/MultiChannelTransport.java
index cc4579821..fd6192cc7 100644
--- a/core/src/main/java/tech/ydb/core/impl/MultiChannelTransport.java
+++ b/core/src/main/java/tech/ydb/core/impl/MultiChannelTransport.java
@@ -95,7 +95,7 @@ public AuthCallOptions getAuthCallOptions() {
     }
 
     @Override
-    GrpcChannel getChannel(GrpcRequestSettings settings) {
+    protected GrpcChannel getChannel(GrpcRequestSettings settings) {
         EndpointRecord endpoint = endpointPool.getEndpoint(null);
         return channelPool.getChannel(endpoint);
     }
diff --git a/core/src/main/java/tech/ydb/core/impl/SingleChannelTransport.java b/core/src/main/java/tech/ydb/core/impl/SingleChannelTransport.java
index eeaf55a59..f59be47e1 100644
--- a/core/src/main/java/tech/ydb/core/impl/SingleChannelTransport.java
+++ b/core/src/main/java/tech/ydb/core/impl/SingleChannelTransport.java
@@ -70,7 +70,7 @@ public AuthCallOptions getAuthCallOptions() {
     }
 
     @Override
-    GrpcChannel getChannel(GrpcRequestSettings settings) {
+    protected GrpcChannel getChannel(GrpcRequestSettings settings) {
         return channel;
     }
 
diff --git a/core/src/main/java/tech/ydb/core/impl/YdbTransportImpl.java b/core/src/main/java/tech/ydb/core/impl/YdbTransportImpl.java
index 7e4186c27..481209163 100644
--- a/core/src/main/java/tech/ydb/core/impl/YdbTransportImpl.java
+++ b/core/src/main/java/tech/ydb/core/impl/YdbTransportImpl.java
@@ -154,7 +154,7 @@ public AuthCallOptions getAuthCallOptions() {
     }
 
     @Override
-    GrpcChannel getChannel(GrpcRequestSettings settings) {
+    protected GrpcChannel getChannel(GrpcRequestSettings settings) {
         EndpointRecord endpoint = endpointPool.getEndpoint(settings.getPreferredNodeID());
         return channelPool.getChannel(endpoint);
     }