diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 39a4d631c..1d2f08af1 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -83,7 +83,7 @@ object Dependencies {
   }
 
   object Runtime {
-    val logback = "ch.qos.logback" % "logback-classic" % "1.5.8" % "runtime" // Eclipse 1.0
+    val logback = "ch.qos.logback" % "logback-classic" % "1.5.12" % "runtime" // Eclipse 1.0
   }
 
   object Protobuf {
diff --git a/samples/akka-grpc-quickstart-java/build.sbt b/samples/akka-grpc-quickstart-java/build.sbt
index 7fed9e5d2..43d1b6529 100644
--- a/samples/akka-grpc-quickstart-java/build.sbt
+++ b/samples/akka-grpc-quickstart-java/build.sbt
@@ -22,7 +22,7 @@ libraryDependencies ++= Seq(
   "com.typesafe.akka" %% "akka-discovery" % akkaVersion,
   "com.typesafe.akka" %% "akka-stream" % akkaVersion,
   "com.typesafe.akka" %% "akka-pki" % akkaVersion,
-  "ch.qos.logback" % "logback-classic" % "1.5.8",
+  "ch.qos.logback" % "logback-classic" % "1.5.12",
   "com.typesafe.akka" %% "akka-actor-testkit-typed" % akkaVersion % Test,
   "com.typesafe.akka" %% "akka-stream-testkit" % akkaVersion % Test,
   "junit" % "junit" % "4.13.2" % Test,
diff --git a/samples/akka-grpc-quickstart-java/pom.xml b/samples/akka-grpc-quickstart-java/pom.xml
index 873625ca8..5eac979c3 100644
--- a/samples/akka-grpc-quickstart-java/pom.xml
+++ b/samples/akka-grpc-quickstart-java/pom.xml
@@ -67,7 +67,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.5.8</version>
+      <version>1.5.12</version>
     </dependency>
 
     <dependency>
diff --git a/samples/akka-grpc-quickstart-scala/build.sbt b/samples/akka-grpc-quickstart-scala/build.sbt
index d285aadf2..e7119df13 100644
--- a/samples/akka-grpc-quickstart-scala/build.sbt
+++ b/samples/akka-grpc-quickstart-scala/build.sbt
@@ -21,7 +21,7 @@ libraryDependencies ++= Seq(
   "com.typesafe.akka" %% "akka-stream" % akkaVersion,
   "com.typesafe.akka" %% "akka-discovery" % akkaVersion,
   "com.typesafe.akka" %% "akka-pki" % akkaVersion,
-  "ch.qos.logback" % "logback-classic" % "1.5.8",
+  "ch.qos.logback" % "logback-classic" % "1.5.12",
   "com.typesafe.akka" %% "akka-actor-testkit-typed" % akkaVersion % Test,
   "com.typesafe.akka" %% "akka-stream-testkit" % akkaVersion % Test,
   "org.scalatest" %% "scalatest" % "3.2.12" % Test)
diff --git a/samples/akka-grpc-quickstart-scala/pom.xml b/samples/akka-grpc-quickstart-scala/pom.xml
index 5cfa8756b..5cade361c 100644
--- a/samples/akka-grpc-quickstart-scala/pom.xml
+++ b/samples/akka-grpc-quickstart-scala/pom.xml
@@ -63,7 +63,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.5.8</version>
+      <version>1.5.12</version>
     </dependency>
 
     <dependency>