diff --git a/03-coroutines-ktor/build.gradle.kts b/03-coroutines-ktor/build.gradle.kts
index 9063a41..583c7d8 100644
--- a/03-coroutines-ktor/build.gradle.kts
+++ b/03-coroutines-ktor/build.gradle.kts
@@ -12,7 +12,7 @@ dependencies {
     implementation("io.ktor:ktor-server-default-headers")
     implementation("io.ktor:ktor-client-apache-jvm")
 
-    implementation("ch.qos.logback:logback-classic:1.5.4")
+    implementation("ch.qos.logback:logback-classic:1.5.6")
 
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor:1.8.0")
     implementation("io.projectreactor.netty:reactor-netty:1.1.18")
diff --git a/04-coroutines-extras/build.gradle.kts b/04-coroutines-extras/build.gradle.kts
index b2414fb..50215b1 100644
--- a/04-coroutines-extras/build.gradle.kts
+++ b/04-coroutines-extras/build.gradle.kts
@@ -6,6 +6,6 @@ plugins {
 dependencies {
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.8.0")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-slf4j:1.8.0")
-    implementation("ch.qos.logback:logback-classic:1.5.4")
+    implementation("ch.qos.logback:logback-classic:1.5.6")
     implementation("io.github.oshai:kotlin-logging-jvm:6.0.9")
 }
\ No newline at end of file