diff --git a/build.gradle b/build.gradle
index e2bca19..e56bcd9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,7 +20,7 @@ dependencies {
 
     // log
     implementation 'org.slf4j:slf4j-api:2.0.6'
-    testRuntimeOnly 'ch.qos.logback:logback-classic:1.3.4'
+    testRuntimeOnly 'ch.qos.logback:logback-classic:1.4.11'
 
     // tests are in Scala
     testImplementation 'org.scala-lang:scala-library:2.13.12'