diff --git a/build.gradle b/build.gradle
index 2b96ea26..e72d8b9b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -66,7 +66,7 @@ configurations.configureEach {
 
 dependencies {
     // from mavenCentral (or mavenLocal) repositories:
-    implementation 'ch.qos.logback:logback-classic:1.4.14'
+    implementation 'ch.qos.logback:logback-classic:1.5.0'
     runtimeOnly    'com.github.nifty-gui:nifty-style-black:1.4.3'
     implementation 'com.github.stephengold:Heart:9.0.0'
     implementation 'com.github.stephengold:Acorus:2.0.0'