diff --git a/pom.xml b/pom.xml
index e729e11..9ad2299 100644
--- a/pom.xml
+++ b/pom.xml
@@ -465,7 +465,7 @@
       <artifactId>assertj-core</artifactId>
       <scope>test</scope>
       <!-- we need to use the same version as in jclouds because we pull in their tests -->
-      <version>1.7.1</version>
+      <version>3.25.0</version>
     </dependency>
     <dependency>
       <groupId>org.eclipse.jetty</groupId>