diff --git a/build.sbt b/build.sbt
index f7e2b0d..c6848b6 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 ThisBuild / version := "0.1.0-SNAPSHOT"
 
-ThisBuild / scalaVersion := "2.13.10"
+ThisBuild / scalaVersion := "2.13.15"
 
 lazy val root = (project in file("."))
   .enablePlugins(Smithy4sCodegenPlugin, PlayScala)
diff --git a/modules/api-definition/project/Dependencies.scala b/modules/api-definition/project/Dependencies.scala
index 5441f91..0564f9d 100644
--- a/modules/api-definition/project/Dependencies.scala
+++ b/modules/api-definition/project/Dependencies.scala
@@ -1,5 +1,5 @@
 import sbt._
 
 object Dependencies {
-  val scalaVersion = "2.13.10"
+  val scalaVersion = "2.13.15"
 }
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index d1c31de..4f4cd73 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -3,7 +3,7 @@ import sbt._
 
 object Dependencies {
 
-  val scalaVersion = "2.13.10"
+  val scalaVersion = "2.13.15"
 
   // innFactory Utils
   val scalaUtil = "de.innfactory.scala-utils" %% "scala-utils" % "2.0.1"