diff --git a/build.gradle b/build.gradle
index e17118b..1afcabe 100644
--- a/build.gradle
+++ b/build.gradle
@@ -32,7 +32,7 @@ dependencies {
     testImplementation platform("org.spockframework:spock-bom:2.3-groovy-4.0")
     testImplementation 'org.spockframework:spock-core'
     testImplementation 'net.bytebuddy:byte-buddy' // allows mocking of classes (in addition to interfaces)
-    testImplementation "org.objenesis:objenesis:3.3"
+    testImplementation "org.objenesis:objenesis:3.4"
 
     testRuntimeOnly 'org.junit.vintage:junit-vintage-engine'
 }