diff --git a/pom.xml b/pom.xml
index 06749dc..561984c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,6 +40,16 @@
             <artifactId>easy-retry-client-starter</artifactId>
             <version>2.3.0-SNAPSHOT</version>
         </dependency>
+        <dependency>
+            <groupId>com.googlecode.aviator</groupId>
+            <artifactId>aviator</artifactId>
+            <version>5.3.3</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>QLExpress</artifactId>
+            <version>3.3.1</version>
+        </dependency>
         <dependency>
             <groupId>com.baomidou</groupId>
             <artifactId>mybatis-plus-boot-starter</artifactId>
diff --git a/src/main/resources/META-INF/services/com.aizuda.easy.retry.client.core.ExpressionEngine b/src/main/resources/META-INF/services/com.aizuda.easy.retry.client.core.ExpressionEngine
new file mode 100644
index 0000000..5740424
--- /dev/null
+++ b/src/main/resources/META-INF/services/com.aizuda.easy.retry.client.core.ExpressionEngine
@@ -0,0 +1,2 @@
+#com.aizuda.easy.retry.client.core.expression.QLExpressEngine
+#com.aizuda.easy.retry.client.core.expression.AviatorExpressionEngine
\ No newline at end of file