diff --git a/haas-spim-benchmark/pom.xml b/haas-spim-benchmark/pom.xml
index 8b41454cd3745b67c0b65c33ac32461435ac1cde..5eaaff881a0976856950c921f752b42603bb5b6e 100644
--- a/haas-spim-benchmark/pom.xml
+++ b/haas-spim-benchmark/pom.xml
@@ -111,8 +111,10 @@
 		<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-jdk14 -->
 		<dependency>
 			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-simple</artifactId>
+			<artifactId>slf4j-log4j12</artifactId>
+			<version>1.7.25</version>
 			<scope>provided</scope>
+			<optional>true</optional>
 		</dependency>
 	</dependencies>
 </project>