diff --git a/leaf-server/minecraft-patches/features/0096-Configurable-vanilla-username-check.patch b/leaf-server/minecraft-patches/features/0096-Configurable-vanilla-username-check.patch
index 8113a8cf..762d4751 100644
--- a/leaf-server/minecraft-patches/features/0096-Configurable-vanilla-username-check.patch
+++ b/leaf-server/minecraft-patches/features/0096-Configurable-vanilla-username-check.patch
@@ -89,27 +89,26 @@ index 6396083993d248683b887774d2db3f3f03825033..fbf4e548f4377c7155a3a02c3b679a03
          this.server.getCustomBossEvents().onPlayerDisconnect(player);
          UUID uuid = player.getUUID();
 diff --git a/net/minecraft/util/StringUtil.java b/net/minecraft/util/StringUtil.java
-index c3a99fe7b49858bc0ca9a7f800b0db40465f6901..2f8a5d0b94b548dfc62f2c40bf10218d34c17574 100644
+index c3a99fe7b49858bc0ca9a7f800b0db40465f6901..316c16b2dbf5f9dda2b1be29fbdd4caa6528fb63 100644
 --- a/net/minecraft/util/StringUtil.java
 +++ b/net/minecraft/util/StringUtil.java
-@@ -64,6 +64,16 @@ public class StringUtil {
+@@ -64,6 +64,15 @@ public class StringUtil {
      }
  
      public static boolean isValidPlayerName(String playerName) {
 +        // Leaf start - Remove vanilla username check
-+        return isValidPlayerName(playerName, org.dreeam.leaf.config.modules.misc.VanillaUsernameCheck.removeAllCheck);
++        return isValidPlayerName(playerName, org.dreeam.leaf.config.modules.misc.VanillaUsernameCheck.removeAllCheck || org.dreeam.leaf.config.modules.misc.VanillaUsernameCheck.useUsernameRegex);
 +    }
 +    public static boolean isValidPlayerNameVanilla(String playerName) {
 +        return playerName.length() <= 16 && playerName.chars().filter(i -> i <= 32 || i >= 127).findAny().isEmpty();
 +    }
 +    public static boolean isValidPlayerName(String playerName, boolean bypassCheck) {
 +        if (bypassCheck) return playerName.length() <= 16;
-+        if (true) return isReasonablePlayerName(playerName); // Leaf - Fix Purpur username validation config
 +        // Leaf end - Remove vanilla username check
          return playerName.length() <= 16 && playerName.chars().filter(i -> i <= 32 || i >= 127).findAny().isEmpty();
      }
  
-@@ -87,7 +97,12 @@ public class StringUtil {
+@@ -87,7 +96,12 @@ public class StringUtil {
  
      // Paper start - Username validation
      public static boolean isReasonablePlayerName(final String name) {
diff --git a/leaf-server/src/main/java/org/dreeam/leaf/config/modules/misc/VanillaUsernameCheck.java b/leaf-server/src/main/java/org/dreeam/leaf/config/modules/misc/VanillaUsernameCheck.java
index a3a62f0a..51e40176 100644
--- a/leaf-server/src/main/java/org/dreeam/leaf/config/modules/misc/VanillaUsernameCheck.java
+++ b/leaf-server/src/main/java/org/dreeam/leaf/config/modules/misc/VanillaUsernameCheck.java
@@ -13,6 +13,7 @@ public class VanillaUsernameCheck extends ConfigModules {
     @Experimental
     public static boolean removeAllCheck = false;
     public static boolean enforceSkullValidation = true;
+    public static boolean useUsernameRegex = false;
     @Experimental
     public static boolean allowOldPlayersJoin = false;
 
@@ -32,6 +33,16 @@ public class VanillaUsernameCheck extends ConfigModules {
             """
                 强制启用头颅验证,
                 避免所有者带有特殊字符的头颅导致客户端掉线."""));
+        useUsernameRegex = config.getBoolean(getBasePath() + ".use-username-regex", useUsernameRegex, config.pickStringRegionBased("""
+                Use username regex,
+                enforcing players to use only allowed characters in their usernames.
+                This will also prevent players from using special characters in their usernames.
+                You should configure this in purpur.yml after enabling.""",
+            """
+                使用用户名正则,
+                要求玩家只能使用允许的字符作为用户名.
+                这将还防止玩家使用潜在的风险字符作为用户名.
+                开启后需要在 purpur.yml 中进行配置."""));
         allowOldPlayersJoin = config.getBoolean(getBasePath() + ".allow-old-players-join", allowOldPlayersJoin, config.pickStringRegionBased("""
                 Allow old players to join the server after the username regex is changed,
                 even if their names don't meet the new requirements.""",