diff --git a/build.gradle b/build.gradle
index 15a0d3e..02050c3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -136,7 +136,7 @@ dependencies {
 		exclude group: 'com.fasterxml.jackson.core'  // breaks everything if we upgrade
 	}
 	testImplementation 'com.github.kbase.workspace_deluxe:workspace_deluxe-test-shadow-all:0.15.0'
-	testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.1.10'
+	testImplementation 'nl.jqno.equalsverifier:equalsverifier:4.0.2'
 	testImplementation 'junit:junit:4.12'
 	testImplementation 'org.mockito:mockito-core:3.0.0'
 	testImplementation('org.mock-server:mockserver-netty:5.4.1') {