diff --git a/other/java/client/src/main/java/seaweedfs/client/FilerSecurityContext.java b/other/java/client/src/main/java/seaweedfs/client/FilerSecurityContext.java
index 7cd80a35d..07a2ce286 100644
--- a/other/java/client/src/main/java/seaweedfs/client/FilerSecurityContext.java
+++ b/other/java/client/src/main/java/seaweedfs/client/FilerSecurityContext.java
@@ -5,7 +5,6 @@ import com.moandjiezana.toml.Toml;
 import io.grpc.netty.shaded.io.grpc.netty.GrpcSslContexts;
 import io.grpc.netty.shaded.io.netty.handler.ssl.SslContext;
 import io.grpc.netty.shaded.io.netty.handler.ssl.SslContextBuilder;
-import io.grpc.netty.shaded.io.netty.handler.ssl.util.InsecureTrustManagerFactory;
 import org.apache.http.ssl.SSLContextBuilder;
 import org.apache.http.ssl.SSLContexts;
 import org.slf4j.Logger;