Fix warning: No SLF4J providers were found.

Change-Id: Ibd3e47fa2965c2966983d512e18cc3613b19c4fa
Reviewed-on: https://korap.ids-mannheim.de/gerrit/c/KorAP/Koral/+/9103
Reviewed-by: Marc Kupietz <kupietz@ids-mannheim.de>
diff --git a/pom.xml b/pom.xml
index 675bee8..14f255e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -128,7 +128,7 @@
 		</dependency>
 		<dependency>
 			<groupId>org.apache.logging.log4j</groupId>
-			<artifactId>log4j-slf4j-impl</artifactId>
+			<artifactId>log4j-slf4j2-impl</artifactId>
 			<version>${log4j.version}</version>
 		</dependency>
 		<dependency>