diff --git a/okdownload-filedownloader/src/main/java/com/liulishuo/filedownloader/connection/DownloadConnectionAdapter.java b/okdownload-filedownloader/src/main/java/com/liulishuo/filedownloader/connection/DownloadConnectionAdapter.java
index ac997ae9..71d9d970 100644
--- a/okdownload-filedownloader/src/main/java/com/liulishuo/filedownloader/connection/DownloadConnectionAdapter.java
+++ b/okdownload-filedownloader/src/main/java/com/liulishuo/filedownloader/connection/DownloadConnectionAdapter.java
@@ -33,8 +33,6 @@
 import java.util.List;
 import java.util.Map;
 
-import okhttp3.internal.http.HttpMethod;
-
 public class DownloadConnectionAdapter implements DownloadConnection, DownloadConnection.Connected {
 
     @NonNull