--- a/artifact-database/src/main/java/org/dive4elements/artifactdatabase/state/StateEngine.java	Fri Feb 25 16:58:11 2022 +0100
+++ b/artifact-database/src/main/java/org/dive4elements/artifactdatabase/state/StateEngine.java	Mon Feb 28 17:41:14 2022 +0100
@@ -5,7 +5,8 @@
 import java.util.List;
 import java.util.Map;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
 
 import org.dive4elements.artifactdatabase.data.StateData;
 
@@ -19,7 +20,7 @@
 public class StateEngine {
 
     /** The logger used in this class. */
-    private static Logger logger = Logger.getLogger(StateEngine.class);
+    private static Logger logger = LogManager.getLogger(StateEngine.class);
 
     /**
      * A map that contains the states of the artifacts. The key of this map is