diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index db127784..f6196b87 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -42,7 +42,7 @@ uritemplate = "io.github.std-uritemplate:std-uritemplate:2.0.8"
 
 jimfs = "com.google.jimfs:jimfs:1.3.1"
 slf4j = "org.slf4j:slf4j-api:2.0.17"
-logback = "ch.qos.logback:logback-classic:1.5.20"
+logback = "ch.qos.logback:logback-classic:1.5.21"
 
 junit-bom = { module = "org.junit:junit-bom", version.ref = "junit" }
 kotest-bom = "io.kotest:kotest-bom:6.0.4"