diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 16fa5bf..8713d1d 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -15,10 +15,10 @@ jobs:
           fetch-depth: 0
       - name: "Set up Maven"
         uses: https://ssl.lunadeer.cn:14446/actions/setup-maven@v4
-      - name: "Set up JDK 17"
+      - name: "Set up JDK 21"
         uses: https://ssl.lunadeer.cn:14446/actions/setup-java@v3
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'zulu'
           cache: maven
       - name: "Build with Maven"
diff --git a/pom.xml b/pom.xml
index 409bc8e..b17cd2d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -80,7 +80,7 @@
         <dependency>
             <groupId>io.papermc.paper</groupId>
             <artifactId>paper-api</artifactId>
-            <version>1.21.1-R0.1-SNAPSHOT</version>
+            <version>1.21-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
diff --git a/src/main/java/cn/lunadeer/essentialsd/events/ChatPrefixEvent.java b/src/main/java/cn/lunadeer/essentialsd/events/ChatPrefixEvent.java
index 43b2f6d..a0230fe 100644
--- a/src/main/java/cn/lunadeer/essentialsd/events/ChatPrefixEvent.java
+++ b/src/main/java/cn/lunadeer/essentialsd/events/ChatPrefixEvent.java
@@ -11,7 +11,7 @@ public class ChatPrefixEvent implements Listener {
     @EventHandler
     public void onChat(AsyncPlayerChatEvent event) {
         event.setCancelled(true);
-        String formated = PlaceholderAPI.setPlaceholders(event.getPlayer(), EssentialsD.config.getPrefixFormat());
+        String formated = PlaceholderAPI.setPlaceholders(event.getPlayer(), EssentialsD.config.getPrefixChatFormat());
         formated += event.getMessage();
         EssentialsD.instance.getServer().broadcastMessage(formated);
     }