diff --git a/trusona-sdk/build.gradle b/trusona-sdk/build.gradle
index 170ad65..5189ba9 100644
--- a/trusona-sdk/build.gradle
+++ b/trusona-sdk/build.gradle
@@ -54,7 +54,7 @@ dependencies {
   testImplementation "org.apache.groovy:groovy-all:4.0.22"
   testImplementation "org.spockframework:spock-core:2.3-groovy-4.0"
   testImplementation "com.squareup.okhttp3:mockwebserver:4.12.0"
-  testImplementation "ch.qos.logback:logback-classic:1.5.7"
+  testImplementation "ch.qos.logback:logback-classic:1.5.9"
 
   spotbugsPlugins "com.h3xstream.findsecbugs:findsecbugs-plugin:1.13.0"
 }
\ No newline at end of file