diff --git a/vertx-mutiny-clients/vertx-mutiny-core/pom.xml b/vertx-mutiny-clients/vertx-mutiny-core/pom.xml
index 03d371a74..d54d9f68b 100644
--- a/vertx-mutiny-clients/vertx-mutiny-core/pom.xml
+++ b/vertx-mutiny-clients/vertx-mutiny-core/pom.xml
@@ -179,7 +179,7 @@
                     <dependency>
                         <groupId>org.apache.logging.log4j</groupId>
                         <artifactId>log4j-api</artifactId>
-                        <version>2.20.0</version>
+                        <version>2.21.0</version>
                     </dependency>
                     <dependency>
                         <groupId>org.apache.logging.log4j</groupId>