diff --git a/pom.xml b/pom.xml
index adb5d81..b5b8087 100644
--- a/pom.xml
+++ b/pom.xml
@@ -64,14 +64,13 @@
 
 		<maven.compiler.source>17</maven.compiler.source>
 		<maven.compiler.target>17</maven.compiler.target>
-
-		<invoker.parallelThreads>1C</invoker.parallelThreads>
+		<maven.compiler.implicit>class</maven.compiler.implicit>
 
 		<!-- ===================================================================== -->
 		<!-- ============================= Versions ============================== -->
 		<!-- ===================================================================== -->
 
-		<version.io.micronaut>4.1.0</version.io.micronaut>
+		<version.io.micronaut>4.1.1</version.io.micronaut>
 
 	</properties>
 
diff --git a/src/main/java/io/kokuwa/micronaut/logging/mdc/MDCTurboFilterConfigurer.java b/src/main/java/io/kokuwa/micronaut/logging/mdc/MDCTurboFilterConfigurer.java
index 5dfab9a..7f4b176 100644
--- a/src/main/java/io/kokuwa/micronaut/logging/mdc/MDCTurboFilterConfigurer.java
+++ b/src/main/java/io/kokuwa/micronaut/logging/mdc/MDCTurboFilterConfigurer.java
@@ -1,5 +1,6 @@
 package io.kokuwa.micronaut.logging.mdc;
 
+import java.util.Collection;
 import java.util.Set;
 
 import org.slf4j.Logger;
@@ -13,33 +14,58 @@ import io.micronaut.context.annotation.Requires;
 import io.micronaut.context.env.Environment;
 import io.micronaut.core.type.Argument;
 import io.micronaut.core.util.StringUtils;
+import io.micronaut.logging.LogLevel;
+import io.micronaut.logging.LoggingSystem;
 
 /**
  * Configure MDC filter.
  *
  * @author Stephan Schnabel
  */
+@BootstrapContextCompatible
 @Requires(beans = LogbackUtil.class)
 @Requires(property = MDCTurboFilterConfigurer.PREFIX)
 @Requires(property = MDCTurboFilterConfigurer.PREFIX + ".enabled", notEquals = StringUtils.FALSE)
-@BootstrapContextCompatible
 @Context
-public class MDCTurboFilterConfigurer {
+public class MDCTurboFilterConfigurer implements LoggingSystem {
 
 	public static final String PREFIX = "logger.mdc";
 
 	private static final Logger log = LoggerFactory.getLogger(MDCTurboFilterConfigurer.class);
+
 	private final LogbackUtil logback;
 	private final Environment environment;
 
+	private Collection<String> mdcs = Set.of();
+	private boolean initialized;
+
 	public MDCTurboFilterConfigurer(LogbackUtil logback, Environment environment) {
 		this.logback = logback;
 		this.environment = environment;
-		configure();
+		this.refresh();
 	}
 
-	public void configure() {
-		for (var name : environment.getPropertyEntries(PREFIX)) {
+	@Override
+	public void refresh() {
+
+		mdcs = environment.getPropertyEntries(PREFIX);
+		initialized = false;
+
+		if (environment.getProperties("logger.levels").isEmpty()) {
+			log.warn("MDCs are configured, but no levels are set. MDC may not work.");
+		}
+	}
+
+	@Override
+	public void setLogLevel(String name, LogLevel level) {
+		if (!initialized) {
+			configure();
+			initialized = true;
+		}
+	}
+
+	private void configure() {
+		for (var name : mdcs) {
 
 			var prefix = PREFIX + "." + name + ".";
 			var key = environment.getProperty(prefix + "key", String.class, name);
diff --git a/src/test/resources/application-test-mdc.yaml b/src/test/resources/application-test-mdc.yaml
index c0fd2a2..69cbc89 100644
--- a/src/test/resources/application-test-mdc.yaml
+++ b/src/test/resources/application-test-mdc.yaml
@@ -1,4 +1,6 @@
 logger:
+  levels:
+    io.micronaut.logging.PropertiesLoggingLevelsConfigurer: "OFF"
   mdc:
     key1:
       key: key