diff --git a/java/build.gradle b/java/build.gradle
index 8142800..d9db9f8 100644
--- a/java/build.gradle
+++ b/java/build.gradle
@@ -20,7 +20,7 @@ dependencies {
     testRuntimeClasspath("org.junit.platform:junit-platform-launcher")
     testRuntimeClasspath("org.junit.jupiter:junit-jupiter-engine")
     
-    testImplementation("org.assertj:assertj-core:3.13.2")
+    testImplementation("org.assertj:assertj-core:3.18.0")
 }
 
 test {