diff --git a/servlet-hello-world/build.gradle b/servlet-hello-world/build.gradle
index bec4c10..75916aa 100644
--- a/servlet-hello-world/build.gradle
+++ b/servlet-hello-world/build.gradle
@@ -4,7 +4,7 @@ dependencies {
     implementation "com.graphql-java-kickstart:graphql-java-servlet:$LIB_GRAPHQL_SERVLET_VER"
     implementation "io.projectreactor:reactor-core:3.5.9"
     implementation 'ch.qos.logback:logback-classic:1.4.11'
-    implementation 'org.slf4j:slf4j-simple:2.0.7'
+    implementation 'org.slf4j:slf4j-simple:2.0.9'
     implementation "org.eclipse.jetty:jetty-webapp:${jettyVersion}"
     implementation "org.eclipse.jetty:jetty-annotations:${jettyVersion}"
     implementation "org.eclipse.jetty.websocket:websocket-api:${jettyVersion}"