diff --git a/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/GroovyTrigger.java b/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/GroovyTrigger.java
index 330f63b..352d4ad 100644
--- a/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/GroovyTrigger.java
+++ b/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/GroovyTrigger.java
@@ -1,5 +1,7 @@
 package net.lamgc.oracle.sentry.script.groovy.trigger;
 
+import groovy.lang.Closure;
+
 /**
  * Groovy 脚本的触发器接口.
  * <p> 实现该接口并添加 {@link TriggerName} 注解后,
@@ -13,6 +15,6 @@ public interface GroovyTrigger {
      * <p> 注意, 触发器执行 run 方法不可以阻塞方法返回.
      * @param task 触发器需要执行的任务.
      */
-    void run(Runnable task);
+    void run(Closure<?> task);
 
 }
diff --git a/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/OnceTrigger.java b/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/OnceTrigger.java
index 1971265..85b3b02 100644
--- a/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/OnceTrigger.java
+++ b/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/OnceTrigger.java
@@ -1,6 +1,7 @@
 package net.lamgc.oracle.sentry.script.groovy.trigger;
 
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import groovy.lang.Closure;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -23,7 +24,7 @@ public class OnceTrigger implements GroovyTrigger {
             .build());
 
     @Override
-    public void run(Runnable task) {
+    public void run(Closure<?> task) {
         EXECUTOR.execute(task);
     }
 }
diff --git a/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/TimerTrigger.java b/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/TimerTrigger.java
index 556b749..a525d63 100644
--- a/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/TimerTrigger.java
+++ b/src/main/java/net/lamgc/oracle/sentry/script/groovy/trigger/TimerTrigger.java
@@ -2,6 +2,7 @@ package net.lamgc.oracle.sentry.script.groovy.trigger;
 
 import com.google.common.base.Throwables;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import groovy.lang.Closure;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
@@ -38,7 +39,7 @@ public class TimerTrigger implements GroovyTrigger {
     }
 
     @Override
-    public void run(Runnable runnable) {
+    public void run(Closure<?> runnable) {
         if (trigger == null) {
             if (!log.isDebugEnabled()) {
                 log.warn("脚本尚未设置 Cron 时间表达式, 任务将不会执行(堆栈信息请检查调试级别日志).");
@@ -57,7 +58,21 @@ public class TimerTrigger implements GroovyTrigger {
             return;
         }
 
-        SCHEDULER.schedule(runnable, trigger);
+        SCHEDULER.schedule(new TimerTaskRunnable(runnable), trigger);
+    }
+
+    private static class TimerTaskRunnable implements Runnable {
+
+        private final Closure<?> closure;
+
+        private TimerTaskRunnable(Closure<?> closure) {
+            this.closure = closure;
+        }
+
+        @Override
+        public void run() {
+            closure.call();
+        }
     }
 
 }
diff --git a/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BadAnnotationTrigger.java b/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BadAnnotationTrigger.java
index 1d22388..8d2b474 100644
--- a/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BadAnnotationTrigger.java
+++ b/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BadAnnotationTrigger.java
@@ -2,8 +2,4 @@ package net.lamgc.oracle.sentry.script.groovy.trigger;
 
 @TriggerName("")
 public class BadAnnotationTrigger extends BaseTestTrigger {
-    @Override
-    public void run(Runnable task) {
-        throw new UnsupportedOperationException("Unavailable trigger.");
-    }
 }
diff --git a/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BaseTestTrigger.java b/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BaseTestTrigger.java
index 1c6dd57..ea12520 100644
--- a/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BaseTestTrigger.java
+++ b/src/test/java/net/lamgc/oracle/sentry/script/groovy/trigger/BaseTestTrigger.java
@@ -1,8 +1,10 @@
 package net.lamgc.oracle.sentry.script.groovy.trigger;
 
+import groovy.lang.Closure;
+
 public abstract class BaseTestTrigger implements GroovyTrigger {
     @Override
-    public void run(Runnable task) {
+    public void run(Closure<?> task) {
         throw new UnsupportedOperationException("Unavailable trigger.");
     }
 }