diff --git a/planner/pom.xml b/planner/pom.xml
index e4c8e703b..817827cf0 100755
--- a/planner/pom.xml
+++ b/planner/pom.xml
@@ -74,8 +74,14 @@
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
-			<version>1.7.25</version>
+			<version>${org.slf4j-version}</version>
 		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-simple</artifactId>
+			<version>${org.slf4j-version}</version>
+		</dependency>
+
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-core</artifactId>