diff --git a/logback-android/build.gradle b/logback-android/build.gradle
index d3fecbfdb..1b96a2050 100644
--- a/logback-android/build.gradle
+++ b/logback-android/build.gradle
@@ -115,7 +115,7 @@ dependencies {
     testImplementation 'org.mockito:mockito-core:5.23.0'
     testImplementation 'joda-time:joda-time:2.14.3'
 
-    testImplementation 'com.icegreen:greenmail:2.1.11'
+    testImplementation 'com.icegreen:greenmail:2.1.13'
     testImplementation 'dom4j:dom4j:1.6.1'
     testImplementation "org.slf4j:integration:2.0.0-alpha1" // don't seem to have any stable 2.x releases yet: https://mvnrepository.com/artifact/org.slf4j/integration
     testImplementation "org.slf4j:log4j-over-slf4j:${slf4jVersion}"