diff --git a/pom.xml b/pom.xml
index cae52ac06c6..f442dafe8a3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -45,7 +45,7 @@
 
   <properties>
     <junit.version>4.13.1</junit.version>
-    <assertj.version>3.4.1</assertj.version>
+    <assertj.version>3.24.2</assertj.version>
     <apacheds-protocol-dns.version>1.5.7</apacheds-protocol-dns.version>
     <generated.dir>${project.basedir}/src/main/generated</generated.dir>
     <stack.version>5.0.0-SNAPSHOT</stack.version>
diff --git a/src/test/java/io/vertx/core/BlockedThreadCheckerTest.java b/src/test/java/io/vertx/core/BlockedThreadCheckerTest.java
index 621d09c2d86..7c31c09ad23 100644
--- a/src/test/java/io/vertx/core/BlockedThreadCheckerTest.java
+++ b/src/test/java/io/vertx/core/BlockedThreadCheckerTest.java
@@ -11,7 +11,6 @@
 
 package io.vertx.core;
 
-import io.vertx.core.*;
 import io.vertx.core.impl.VertxInternal;
 import io.vertx.test.core.BlockedThreadWarning;
 import io.vertx.test.core.VertxTestBase;