diff --git a/pom.xml b/pom.xml
index 9d1f4d43..34e04cdc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -166,7 +166,7 @@
     <dependency>
       <groupId>nl.jqno.equalsverifier</groupId>
       <artifactId>equalsverifier</artifactId>
-      <version>3.7.2</version>
+      <version>3.9</version>
       <scope>test</scope>
     </dependency>
     <dependency>