diff --git a/src/main/java/xyz/zhouxy/plusone/commons/util/SnowflakeIdGenerator.java b/src/main/java/xyz/zhouxy/plusone/commons/util/SnowflakeIdGenerator.java
index 2e74309..7ed3888 100644
--- a/src/main/java/xyz/zhouxy/plusone/commons/util/SnowflakeIdGenerator.java
+++ b/src/main/java/xyz/zhouxy/plusone/commons/util/SnowflakeIdGenerator.java
@@ -64,9 +64,9 @@ public class SnowflakeIdGenerator {
      * @param datacenterId 数据中心ID (0~31)
      */
     public SnowflakeIdGenerator(final long workerId, final long datacenterId) {
-        Preconditions.checkArgument((workerId > MAX_WORKER_ID || workerId < 0),
+        Preconditions.checkArgument((workerId <= MAX_WORKER_ID || workerId >= 0),
                 "WorkerId can't be greater than %s or less than 0.", MAX_WORKER_ID);
-        Preconditions.checkArgument((datacenterId > MAX_DATACENTER_ID || datacenterId < 0),
+        Preconditions.checkArgument((datacenterId <= MAX_DATACENTER_ID || datacenterId >= 0),
                 "DatacenterId can't be greater than %s or less than 0.", MAX_DATACENTER_ID);
         this.datacenterIdAndWorkerId
                 = (datacenterId << DATACENTER_ID_SHIFT) | (workerId << WORKER_ID_SHIFT);