diff --git a/dledger/pom.xml b/dledger/pom.xml
index bb519545..26d32ad8 100644
--- a/dledger/pom.xml
+++ b/dledger/pom.xml
@@ -30,6 +30,17 @@
         <dependency>
             <groupId>org.apache.rocketmq</groupId>
             <artifactId>rocketmq-remoting</artifactId>
+            <exclusions>
+                <exclusion>
+                    <groupId>com.alibaba</groupId>
+                    <artifactId>fastjson</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba.fastjson2</groupId>
+            <artifactId>fastjson2</artifactId>
+            <version>2.0.59</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
diff --git a/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerEntryPusher.java b/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerEntryPusher.java
index 5682fd57..0c715659 100644
--- a/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerEntryPusher.java
+++ b/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerEntryPusher.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.common.Closure;
 import io.openmessaging.storage.dledger.common.ShutdownAbleThread;
 import io.openmessaging.storage.dledger.common.Status;
diff --git a/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerLeaderElector.java b/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerLeaderElector.java
index e23bff61..e99eb429 100644
--- a/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerLeaderElector.java
+++ b/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerLeaderElector.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.common.ShutdownAbleThread;
 import io.openmessaging.storage.dledger.protocol.DLedgerResponseCode;
 import io.openmessaging.storage.dledger.protocol.HeartBeatRequest;
diff --git a/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerRpcNettyService.java b/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerRpcNettyService.java
index c53fda36..1e93f363 100644
--- a/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerRpcNettyService.java
+++ b/dledger/src/main/java/io/openmessaging/storage/dledger/DLedgerRpcNettyService.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.netty.channel.ChannelHandlerContext;
 import io.openmessaging.storage.dledger.common.NamedThreadFactory;
 import io.openmessaging.storage.dledger.protocol.AppendEntryRequest;
diff --git a/dledger/src/main/java/io/openmessaging/storage/dledger/client/DLedgerClientRpcNettyService.java b/dledger/src/main/java/io/openmessaging/storage/dledger/client/DLedgerClientRpcNettyService.java
index 57d2a703..1664acaa 100644
--- a/dledger/src/main/java/io/openmessaging/storage/dledger/client/DLedgerClientRpcNettyService.java
+++ b/dledger/src/main/java/io/openmessaging/storage/dledger/client/DLedgerClientRpcNettyService.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.client;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.protocol.AppendEntryRequest;
 import io.openmessaging.storage.dledger.protocol.AppendEntryResponse;
 import io.openmessaging.storage.dledger.protocol.DLedgerRequestCode;
diff --git a/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotReader.java b/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotReader.java
index cd4427c5..69fec25b 100644
--- a/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotReader.java
+++ b/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotReader.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.snapshot.file;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.snapshot.DownloadSnapshot;
 import io.openmessaging.storage.dledger.snapshot.SnapshotManager;
 import io.openmessaging.storage.dledger.snapshot.SnapshotMeta;
diff --git a/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotWriter.java b/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotWriter.java
index 5009cdd3..20302bd0 100644
--- a/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotWriter.java
+++ b/dledger/src/main/java/io/openmessaging/storage/dledger/snapshot/file/FileSnapshotWriter.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.snapshot.file;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.snapshot.SnapshotManager;
 import io.openmessaging.storage.dledger.snapshot.SnapshotMeta;
 import io.openmessaging.storage.dledger.snapshot.SnapshotStatus;
diff --git a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotManagerTest.java b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotManagerTest.java
index f570d12d..4dd72205 100644
--- a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotManagerTest.java
+++ b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotManagerTest.java
@@ -1,6 +1,6 @@
 package io.openmessaging.storage.dledger.snapshot;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.DLedgerConfig;
 import io.openmessaging.storage.dledger.DLedgerServer;
 import io.openmessaging.storage.dledger.MemberState;
diff --git a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotReaderTest.java b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotReaderTest.java
index f538351b..2081019a 100644
--- a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotReaderTest.java
+++ b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotReaderTest.java
@@ -1,6 +1,6 @@
 package io.openmessaging.storage.dledger.snapshot;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.snapshot.file.FileSnapshotReader;
 import io.openmessaging.storage.dledger.util.FileTestUtil;
 import io.openmessaging.storage.dledger.utils.IOUtils;
@@ -9,7 +9,6 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.util.UUID;
 
 public class SnapshotReaderTest {
 
diff --git a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotStoreTest.java b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotStoreTest.java
index 51d61704..12f5b7ac 100644
--- a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotStoreTest.java
+++ b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotStoreTest.java
@@ -1,6 +1,5 @@
 package io.openmessaging.storage.dledger.snapshot;
 
-import com.alibaba.fastjson.JSON;
 import io.openmessaging.storage.dledger.snapshot.file.FileSnapshotStore;
 import io.openmessaging.storage.dledger.util.FileTestUtil;
 import io.openmessaging.storage.dledger.utils.IOUtils;
diff --git a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotWriterTest.java b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotWriterTest.java
index 21df4363..8a46cdb9 100644
--- a/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotWriterTest.java
+++ b/dledger/src/test/java/io/openmessaging/storage/dledger/snapshot/SnapshotWriterTest.java
@@ -1,6 +1,6 @@
 package io.openmessaging.storage.dledger.snapshot;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.snapshot.file.FileSnapshotStore;
 import io.openmessaging.storage.dledger.snapshot.file.FileSnapshotWriter;
 import io.openmessaging.storage.dledger.util.FileTestUtil;
diff --git a/dledger/src/test/java/io/openmessaging/storage/dledger/statemachine/StateMachineCallerTest.java b/dledger/src/test/java/io/openmessaging/storage/dledger/statemachine/StateMachineCallerTest.java
index b9e5a0ac..ae35b077 100644
--- a/dledger/src/test/java/io/openmessaging/storage/dledger/statemachine/StateMachineCallerTest.java
+++ b/dledger/src/test/java/io/openmessaging/storage/dledger/statemachine/StateMachineCallerTest.java
@@ -16,6 +16,7 @@
 
 package io.openmessaging.storage.dledger.statemachine;
 
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.common.Status;
 import io.openmessaging.storage.dledger.common.WriteClosure;
 import io.openmessaging.storage.dledger.common.WriteTask;
@@ -25,7 +26,6 @@
 import java.util.UUID;
 import java.util.concurrent.CountDownLatch;
 
-import com.alibaba.fastjson.JSON;
 import io.openmessaging.storage.dledger.DLedgerConfig;
 import io.openmessaging.storage.dledger.DLedgerServer;
 import io.openmessaging.storage.dledger.MemberState;
diff --git a/example/src/main/java/io/openmessaging/storage/dledger/example/appender/AppenderDLedger.java b/example/src/main/java/io/openmessaging/storage/dledger/example/appender/AppenderDLedger.java
index cc3fad80..6785e74b 100644
--- a/example/src/main/java/io/openmessaging/storage/dledger/example/appender/AppenderDLedger.java
+++ b/example/src/main/java/io/openmessaging/storage/dledger/example/appender/AppenderDLedger.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.example.appender;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import io.openmessaging.storage.dledger.DLedgerConfig;
 import io.openmessaging.storage.dledger.proxy.DLedgerProxy;
 import java.util.Collections;
diff --git a/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/AppendCommand.java b/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/AppendCommand.java
index 4bce09ad..7959d489 100644
--- a/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/AppendCommand.java
+++ b/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/AppendCommand.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.example.appender.command;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
 import io.openmessaging.storage.dledger.client.DLedgerClient;
diff --git a/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/GetCommand.java b/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/GetCommand.java
index 87ebf407..283b5326 100644
--- a/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/GetCommand.java
+++ b/example/src/main/java/io/openmessaging/storage/dledger/example/appender/command/GetCommand.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.example.appender.command;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
 import io.openmessaging.storage.dledger.client.DLedgerClient;
diff --git a/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/LeadershipTransferCommand.java b/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/LeadershipTransferCommand.java
index 3b004f86..54d3b3e8 100644
--- a/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/LeadershipTransferCommand.java
+++ b/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/LeadershipTransferCommand.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.example.common.command;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
 import io.openmessaging.storage.dledger.client.DLedgerClient;
diff --git a/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/ReadFileCommand.java b/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/ReadFileCommand.java
index d7872672..ac9a9481 100644
--- a/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/ReadFileCommand.java
+++ b/example/src/main/java/io/openmessaging/storage/dledger/example/common/command/ReadFileCommand.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.example.common.command;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
 import io.openmessaging.storage.dledger.entry.DLedgerEntry;
diff --git a/example/src/main/java/io/openmessaging/storage/dledger/example/register/command/ReadCommand.java b/example/src/main/java/io/openmessaging/storage/dledger/example/register/command/ReadCommand.java
index 924cbbab..ed1814b7 100644
--- a/example/src/main/java/io/openmessaging/storage/dledger/example/register/command/ReadCommand.java
+++ b/example/src/main/java/io/openmessaging/storage/dledger/example/register/command/ReadCommand.java
@@ -16,7 +16,7 @@
 
 package io.openmessaging.storage.dledger.example.register.command;
 
-import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson2.JSON;
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
 import io.openmessaging.storage.dledger.common.ReadMode;
diff --git a/pom.xml b/pom.xml
index 061a743d..a2bd68eb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,7 +42,7 @@
         <slf4j-simple.version>1.7.36</slf4j-simple.version>
         <snakeyaml.version>1.30</snakeyaml.version>
         <jcommander.version>1.72</jcommander.version>
-        <rocketmq-remoting.version>5.1.0</rocketmq-remoting.version>
+        <rocketmq-remoting.version>5.5.0</rocketmq-remoting.version>
         <sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
         <commons-lang3.version>3.18.0</commons-lang3.version>
         <opentelemetry.version>1.26.0</opentelemetry.version>