diff --git a/build.gradle b/build.gradle
index 5e06663..c7ad6eb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -24,7 +24,7 @@ dependencies {
     implementation "com.fasterxml.jackson.datatype:jackson-datatype-jdk8:$jacksonVersion"
     implementation 'com.github.javaparser:javaparser-core:3.25.10'
 
-    implementation 'org.assertj:assertj-core:3.25.3'
+    implementation 'org.assertj:assertj-core:3.26.3'
     implementation 'org.apiguardian:apiguardian-api:1.1.2' // https://github.com/exercism/java-test-runner/issues/79
     implementation platform('org.junit:junit-bom:5.10.2')
     implementation 'org.junit.jupiter:junit-jupiter'