diff --git a/src/main/java/net/lamgc/cgj/bot/RandomRankingArtworksSender.java b/src/main/java/net/lamgc/cgj/bot/RandomRankingArtworksSender.java
index f27e37c..05a3769 100644
--- a/src/main/java/net/lamgc/cgj/bot/RandomRankingArtworksSender.java
+++ b/src/main/java/net/lamgc/cgj/bot/RandomRankingArtworksSender.java
@@ -7,7 +7,6 @@ import net.lamgc.cgj.pixiv.PixivURL;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.List;
diff --git a/src/main/java/net/lamgc/cgj/bot/cache/AutoCleanTimer.java b/src/main/java/net/lamgc/cgj/bot/cache/AutoCleanTimer.java
index fc6ee6a..ee67552 100644
--- a/src/main/java/net/lamgc/cgj/bot/cache/AutoCleanTimer.java
+++ b/src/main/java/net/lamgc/cgj/bot/cache/AutoCleanTimer.java
@@ -15,7 +15,7 @@ public class AutoCleanTimer extends TimerTask {
 
     private final static Timer cleanTimer = new Timer("Thread-AutoClean", true);
 
-    private final static Logger log = LoggerFactory.getLogger(AutoCleanTimer.class.getName());
+    private final static Logger log = LoggerFactory.getLogger(AutoCleanTimer.class);
 
     static {
         cleanTimer.schedule(new AutoCleanTimer(), 100L);