diff --git a/lib/build.gradle b/lib/build.gradle
index 684b3a0a..040c82be 100644
--- a/lib/build.gradle
+++ b/lib/build.gradle
@@ -55,7 +55,7 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.11.4'
     testImplementation 'org.mockito:mockito-core:5.15.2'
     testImplementation 'org.mockito:mockito-junit-jupiter:5.15.2'
-    testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.19.4'
+    testImplementation 'nl.jqno.equalsverifier:equalsverifier:4.1.1'
     testImplementation 'org.assertj:assertj-core:3.27.6'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.11.4'