diff --git a/pom.xml b/pom.xml
index 8305364..f47ba44 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,6 +26,16 @@
             <version>4.12</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>2.17.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>2.17.0</version>
+        </dependency>
 
 <!--        &lt;!&ndash; https://mvnrepository.com/artifact/org.apache.commons/commons-pool2 &ndash;&gt;-->
 <!--        <dependency>-->
diff --git a/src/main/java/racal/sunyard/main/SydApi4j.java b/src/main/java/racal/sunyard/main/SydApi4j.java
index 17c4723..f84300b 100644
--- a/src/main/java/racal/sunyard/main/SydApi4j.java
+++ b/src/main/java/racal/sunyard/main/SydApi4j.java
@@ -19,7 +19,7 @@ import com.sunyard.util.CoderUtil;
 import com.sunyard.util.FileUtil;
 import com.sunyard.util.MyUtil;
 import com.sunyard.util.SYMUtil;
-import org.slf4j.Logger;
+import org.apache.logging.log4j.Logger;
 import racal.sunyard.main.dto.*;
 import racal.sunyard.main.proto.*;