diff --git a/contrib/langchain4j/pom.xml b/contrib/langchain4j/pom.xml
index e58f9f347..a376b40b3 100644
--- a/contrib/langchain4j/pom.xml
+++ b/contrib/langchain4j/pom.xml
@@ -14,7 +14,6 @@
  See the License for the specific language governing permissions and
  limitations under the License.
 -->
-
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -26,49 +25,15 @@
     </parent>
 
     <artifactId>google-adk-contrib-langchain4j</artifactId>
-    <packaging>jar</packaging>
-
     <name>Agent Development Kit - Contributions - LangChain4j</name>
-    <url>https://github.com/google/adk-java</url>
-    <licenses>
-        <license>
-            <name>The Apache License, Version 2.0</name>
-            <url>https://www.apache.org/licenses/LICENSE-2.0</url>
-        </license>
-    </licenses>
-    <scm>
-        <connection>scm:git:git@github.com/google:adk-java.git</connection>
-        <developerConnection>
-            scm:git:git@github.com/google:adk-java.git
-        </developerConnection>
-        <url>git@github.com/google:adk-java.git</url>
-    </scm>
-    <developers>
-        <developer>
-            <organization>Google Inc.</organization>
-            <organizationUrl>http://www.google.com</organizationUrl>
-        </developer>
-    </developers>
-    <description>
-        Third-party contributions, integrations, and plugins for Agent Development Kit.
-    </description>
+    <description>LangChain4j integration for the Agent Development Kit.</description>
+
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <java.version>17</java.version>
-        <maven.compiler.release>${java.version}</maven.compiler.release>
         <mcp-schema.version>0.10.0</mcp-schema.version>
-        <errorprone.version>2.38.0</errorprone.version>
-        <google.auth.version>1.33.1</google.auth.version>
-        <google.cloud.storage.version>2.28.0</google.cloud.storage.version>
         <google.genai.version>1.0.0</google.genai.version>
-        <auto-value.version>1.11.0</auto-value.version>
-        <protobuf.version>4.31.0-RC1</protobuf.version>
         <junit.version>5.11.4</junit.version>
         <mockito.version>5.17.0</mockito.version>
-        <java-websocket.version>1.6.0</java-websocket.version>
-        <jackson.version>2.19.0</jackson.version>
-        <okhttp.version>4.12.0</okhttp.version>
-        <langchain4j.version>1.0.1</langchain4j.version>
+        <langchain4j.version>1.1.0</langchain4j.version>
     </properties>
     <dependencyManagement>
         <dependencies>
@@ -170,215 +135,4 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    <distributionManagement>
-        <repository>
-            <id>ossrh</id>
-            <name>Central Repository OSSRH</name>
-            <url>https://google.oss.sonatype.org/service/local/staging/deploy/maven2/</url>
-        </repository>
-        <snapshotRepository>
-            <id>ossrh</id>
-            <name>Central Repository OSSRH for snapshots</name>
-            <url>https://google.oss.sonatype.org/content/repositories/snapshots</url>
-        </snapshotRepository>
-    </distributionManagement>
-    <build>
-        <extensions>
-            <extension>
-                <groupId>com.google.cloud.artifactregistry</groupId>
-                <artifactId>artifactregistry-maven-wagon</artifactId>
-                <version>2.2.0</version>
-            </extension>
-        </extensions>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <artifactId>maven-clean-plugin</artifactId>
-                    <version>3.1.0</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-resources-plugin</artifactId>
-                    <version>3.0.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.13.0</version>
-                    <configuration>
-                        <source>${java.version}</source>
-                        <target>${java.version}</target>
-                        <release>${maven.compiler.release}</release>
-                        <parameters>true</parameters>
-                        <annotationProcessorPaths>
-                            <path>
-                                <groupId>com.google.auto.value</groupId>
-                                <artifactId>auto-value</artifactId>
-                                <version>${auto-value.version}</version>
-                            </path>
-                        </annotationProcessorPaths>
-                    </configuration>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-surefire-plugin</artifactId>
-                    <version>3.5.3</version>
-                    <dependencies>
-                        <dependency>
-                            <groupId>me.fabriciorby</groupId>
-                            <artifactId>maven-surefire-junit5-tree-reporter</artifactId>
-                            <version>0.1.0</version>
-                        </dependency>
-                    </dependencies>
-                    <configuration>
-                        <reportFormat>plain</reportFormat>
-                        <statelessTestsetInfoReporter
-                                implementation="org.apache.maven.plugin.surefire.extensions.junit5.JUnit5StatelessTestsetInfoTreeReporter"/>
-                        <includes>
-                            <include>**/*Test.java</include>
-                        </includes>
-                    </configuration>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-jar-plugin</artifactId>
-                    <version>3.0.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-install-plugin</artifactId>
-                    <version>2.5.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-deploy-plugin</artifactId>
-                    <version>3.1.1</version>
-                    <configuration>
-                        <skip>false</skip>
-                    </configuration>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-site-plugin</artifactId>
-                    <version>3.7.1</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-project-info-reports-plugin</artifactId>
-                    <version>3.0.0</version>
-                </plugin>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-gpg-plugin</artifactId>
-                    <version>3.2.7</version>
-                    <executions>
-                        <execution>
-                            <id>sign-artifacts</id>
-                            <phase>verify</phase>
-                            <goals>
-                                <goal>sign</goal>
-                            </goals>
-                        </execution>
-                    </executions>
-                </plugin>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-source-plugin</artifactId>
-                    <version>3.3.1</version>
-                </plugin>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-javadoc-plugin</artifactId>
-                    <version>3.6.3</version>
-                    <configuration>
-                        <doclint>all,-missing</doclint>
-                        <nohelp>true</nohelp>
-                        <outputDirectory>${project.build.directory}/javadoc</outputDirectory>
-                        <doctitle>Agent Development Kit</doctitle>
-                        <source>${maven.compiler.release}</source>
-                        <encoding>UTF-8</encoding>
-                    </configuration>
-                    <executions>
-                        <execution>
-                            <id>attach-javadocs</id>
-                            <goals>
-                                <goal>jar</goal>
-                            </goals>
-                        </execution>
-                    </executions>
-                </plugin>
-                <plugin>
-                    <groupId>org.sonatype.plugins</groupId>
-                    <artifactId>nexus-staging-maven-plugin</artifactId>
-                    <version>1.7.0</version>
-                    <extensions>true</extensions>
-                    <configuration>
-                        <serverId>ossrh</serverId>
-                        <nexusUrl>https://google.oss.sonatype.org/</nexusUrl>
-                        <autoReleaseAfterClose>false</autoReleaseAfterClose>
-                    </configuration>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-        <plugins>
-            <plugin>
-                <groupId>org.jacoco</groupId>
-                <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.8.12</version>
-                <executions>
-                    <execution>
-                        <goals>
-                            <goal>prepare-agent</goal>
-                        </goals>
-                        <configuration>
-                            <excludes>
-                                <exclude>*MockitoMock*</exclude>
-                                <exclude>*$$EnhancerByMockitoWithCGLIB$$*</exclude>
-                                <exclude>*$$FastClassByMockitoWithCGLIB$$*</exclude>
-                                <exclude>com/sun/tools/attach/*</exclude>
-                                <exclude>sun/util/resources/cldr/provider/*</exclude>
-                            </excludes>
-                        </configuration>
-                    </execution>
-                    <execution>
-                        <id>report</id>
-                        <phase>test</phase>
-                        <goals>
-                            <goal>report</goal>
-                        </goals>
-                        <configuration>
-                            <formats>
-                                <format>HTML</format>
-                            </formats>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-    <profiles>
-        <profile>
-            <id>release</id>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-source-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <id>attach-sources</id>
-                                <goals>
-                                    <goal>jar-no-fork</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                    </plugin>
-                    <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-javadoc-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <id>attach-javadocs</id>
-                                <goals>
-                                    <goal>jar</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-    </profiles>
 </project>