diff --git a/agentscope-core/pom.xml b/agentscope-core/pom.xml
index f0ffe2d75..100521bd5 100644
--- a/agentscope-core/pom.xml
+++ b/agentscope-core/pom.xml
@@ -78,6 +78,12 @@
             <artifactId>jsonschema-module-jackson</artifactId>
         </dependency>
 
+        <!-- Jackson 3.x (tools.jackson) required by jsonschema-generator 5.x -->
+        <dependency>
+            <groupId>tools.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+
         <!-- Jackson Java 8 Date/Time support -->
         <dependency>
             <groupId>com.fasterxml.jackson.datatype</groupId>
diff --git a/agentscope-core/src/main/java/io/agentscope/core/util/JsonSchemaUtils.java b/agentscope-core/src/main/java/io/agentscope/core/util/JsonSchemaUtils.java
index f15efe598..8166f2f7e 100644
--- a/agentscope-core/src/main/java/io/agentscope/core/util/JsonSchemaUtils.java
+++ b/agentscope-core/src/main/java/io/agentscope/core/util/JsonSchemaUtils.java
@@ -95,9 +95,9 @@ public class JsonSchemaUtils {
      */
     public static Map<String, Object> generateSchemaFromClass(Class<?> clazz) {
         try {
-            JsonNode schemaNode = schemaGenerator.generateSchema(clazz);
+            String schemaJson = schemaGenerator.generateSchema(clazz).toString();
             return JsonUtils.getJsonCodec()
-                    .convertValue(schemaNode, new TypeReference<Map<String, Object>>() {});
+                    .fromJson(schemaJson, new TypeReference<Map<String, Object>>() {});
         } catch (Exception e) {
             throw new RuntimeException("Failed to generate JSON schema for " + clazz.getName(), e);
         }
@@ -130,9 +130,9 @@ public static Map<String, Object> generateSchemaFromJsonNode(JsonNode schema) {
      */
     public static Map<String, Object> generateSchemaFromType(Type type) {
         try {
-            JsonNode schemaNode = schemaGenerator.generateSchema(type);
+            String schemaJson = schemaGenerator.generateSchema(type).toString();
             return JsonUtils.getJsonCodec()
-                    .convertValue(schemaNode, new TypeReference<Map<String, Object>>() {});
+                    .fromJson(schemaJson, new TypeReference<Map<String, Object>>() {});
         } catch (Exception e) {
             throw new RuntimeException(
                     "Failed to generate JSON schema for " + type.getTypeName(), e);
diff --git a/agentscope-core/src/test/java/io/agentscope/core/tool/ToolSchemaModuleTest.java b/agentscope-core/src/test/java/io/agentscope/core/tool/ToolSchemaModuleTest.java
index 4cefb082d..deb20ea45 100644
--- a/agentscope-core/src/test/java/io/agentscope/core/tool/ToolSchemaModuleTest.java
+++ b/agentscope-core/src/test/java/io/agentscope/core/tool/ToolSchemaModuleTest.java
@@ -20,7 +20,6 @@
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import com.github.victools.jsonschema.generator.OptionPreset;
 import com.github.victools.jsonschema.generator.SchemaGenerator;
 import com.github.victools.jsonschema.generator.SchemaGeneratorConfigBuilder;
@@ -28,6 +27,7 @@
 import java.util.List;
 import java.util.stream.StreamSupport;
 import org.junit.jupiter.api.Test;
+import tools.jackson.databind.JsonNode;
 
 /**
  * Tests for {@link ToolSchemaModule}.
diff --git a/agentscope-dependencies-bom/pom.xml b/agentscope-dependencies-bom/pom.xml
index 62fa97214..fcc865e94 100644
--- a/agentscope-dependencies-bom/pom.xml
+++ b/agentscope-dependencies-bom/pom.xml
@@ -105,8 +105,9 @@
         <spring.version>7.0.7</spring.version>
         <spring-boot.version>4.0.4</spring-boot.version>
         <nacos-client.version>3.2.1-2026.03.30</nacos-client.version>
-        <json-schema-validator.version>2.0.0</json-schema-validator.version>
-        <jsonschema-generator.version>4.38.0</jsonschema-generator.version>
+        <json-schema-validator.version>3.0.0</json-schema-validator.version>
+        <jsonschema-generator.version>5.0.0</jsonschema-generator.version>
+        <jackson3.version>3.0.4</jackson3.version>
         <snakeyaml.version>2.6</snakeyaml.version>
         <commons-lang3.version>3.20.0</commons-lang3.version>
         <kotlin.version>1.9.24</kotlin.version>
@@ -457,12 +458,6 @@
                 <groupId>com.github.victools</groupId>
                 <artifactId>jsonschema-generator</artifactId>
                 <version>${jsonschema-generator.version}</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>com.fasterxml.jackson.core</groupId>
-                        <artifactId>jackson-core</artifactId>
-                    </exclusion>
-                </exclusions>
             </dependency>
 
             <!-- Victools JSON Schema Module for Jackson annotations support -->
@@ -472,6 +467,13 @@
                 <version>${jsonschema-generator.version}</version>
             </dependency>
 
+            <!-- Jackson 3.x (tools.jackson) required by jsonschema-generator 5.x -->
+            <dependency>
+                <groupId>tools.jackson.core</groupId>
+                <artifactId>jackson-databind</artifactId>
+                <version>${jackson3.version}</version>
+            </dependency>
+
             <!-- Apache Commons Lang3 -->
             <dependency>
                 <groupId>org.apache.commons</groupId>
diff --git a/agentscope-distribution/agentscope-all/pom.xml b/agentscope-distribution/agentscope-all/pom.xml
index 78c86323d..c78409d50 100644
--- a/agentscope-distribution/agentscope-all/pom.xml
+++ b/agentscope-distribution/agentscope-all/pom.xml
@@ -279,6 +279,12 @@
             <artifactId>jsonschema-module-jackson</artifactId>
         </dependency>
 
+        <!-- Jackson 3.x (tools.jackson) required by jsonschema-generator 5.x -->
+        <dependency>
+            <groupId>tools.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+
         <!-- JSON Schema Validator for tool input validation -->
         <dependency>
             <groupId>com.networknt</groupId>