diff --git a/src/main/java/dice/sinanya/dice/roll/Dx.java b/src/main/java/dice/sinanya/dice/roll/Dx.java
index cd4ee7ff41381a331b5a82a0c72dc2817e7b540b..f0155a98fc3d5d70c1fb291a844eba6dc0959041 100644
--- a/src/main/java/dice/sinanya/dice/roll/Dx.java
+++ b/src/main/java/dice/sinanya/dice/roll/Dx.java
@@ -17,7 +17,7 @@ import static dice.sinanya.tools.makedata.RandomInt.random;
 import static dice.sinanya.tools.makedata.Sender.sender;
 
 public class Dx implements MakeNickToSender {
-    private final Pattern getParam = Pattern.compile("(\\d+)*[a]*(\\d+)*([+-])(\\d+)*");
+    private final Pattern getParam = Pattern.compile("(\\d+)*[a]*(\\d+)*([+-]{0,1})(\\d+)*");
     private final EntityTypeMessages entityTypeMessages;
 
     public Dx(EntityTypeMessages entityTypeMessages) {
diff --git a/src/main/java/dice/sinanya/system/MessagesSystem.java b/src/main/java/dice/sinanya/system/MessagesSystem.java
index 4ad167853810f0dd61de3d8b18160e3043348881..8ef51a8376718fcb772dcad38a11a5f4450db876 100644
--- a/src/main/java/dice/sinanya/system/MessagesSystem.java
+++ b/src/main/java/dice/sinanya/system/MessagesSystem.java
@@ -26,7 +26,7 @@ public class MessagesSystem {
     public static boolean isRunning = false;
     public static SimpleDateFormat DATA_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 
-    public static String VERSIONS = "7.18.14.20.12Stable";
+    public static String VERSIONS = "7.18.14.21.12Stable";
     public static HashMap<String, Boolean> switchList = new HashMap<>();
     public static String redisAddress = "r-2ze8k7x0bluc5makrypd.redis.rds.aliyuncs.com";