diff --git a/build.gradle b/build.gradle
index 3657318..2af13a5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,9 +12,8 @@ repositories {
 }
 
 dependencies {
-    implementation 'org.scala-lang:scala-library:2.13.6'
-    implementation 'com.twitter:finagle-thriftmux_2.13:22.4.0'
-    implementation 'org.apache.thrift:libthrift:0.14.2'
+    implementation 'com.twitter:finagle-thriftmux_2.13:20.1.0'
+    implementation 'org.apache.thrift:libthrift:0.12.0'
 
     testImplementation platform('org.junit:junit-bom:5.10.0')
     testImplementation 'org.junit.jupiter:junit-jupiter'
diff --git a/src/main/java/org/example/HelloServiceImpl.java b/src/main/java/org/example/HelloServiceImpl.java
index 334715d..22e6256 100644
--- a/src/main/java/org/example/HelloServiceImpl.java
+++ b/src/main/java/org/example/HelloServiceImpl.java
@@ -1,7 +1,6 @@
 package org.example;
 
 import com.twitter.util.Future;
-import org.example.HelloService;
 
 public class HelloServiceImpl implements HelloService.ServiceIface {