diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 0e2cfc2..d0239e6 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -2,7 +2,7 @@ import sbt._
 
 object Dependencies {
   // scalaVersion needs to be kept in sync with ci
-  val Scala213 = "2.13.17"
+  val Scala213 = "2.13.18"
   val Scala3 = "3.3.7"
   val ScalaVersions = Seq(Scala213, Scala3)
 
diff --git a/samples/compile-timeDI/build.sbt b/samples/compile-timeDI/build.sbt
index 2238f28..6fc4c0a 100644
--- a/samples/compile-timeDI/build.sbt
+++ b/samples/compile-timeDI/build.sbt
@@ -7,9 +7,9 @@ ThisBuild / dynverVTagPrefix := false
 
 ThisBuild / dynverSonatypeSnapshots := true
 
-scalaVersion := "2.13.17"
+scalaVersion := "2.13.18"
 
-crossScalaVersions := Seq("2.13.17", "3.3.4")
+crossScalaVersions := Seq("2.13.18", "3.3.4")
 
 libraryDependencies ++= Seq(
   "org.playframework" %% "play-mailer" % version.value,
diff --git a/samples/runtimeDI/build.sbt b/samples/runtimeDI/build.sbt
index bace8a6..2844dcf 100644
--- a/samples/runtimeDI/build.sbt
+++ b/samples/runtimeDI/build.sbt
@@ -7,9 +7,9 @@ ThisBuild / dynverVTagPrefix := false
 
 ThisBuild / dynverSonatypeSnapshots := true
 
-scalaVersion := "2.13.17"
+scalaVersion := "2.13.18"
 
-crossScalaVersions := Seq("2.13.17", "3.3.4")
+crossScalaVersions := Seq("2.13.18", "3.3.4")
 
 libraryDependencies ++= Seq(
   "org.playframework" %% "play-mailer-guice" % version.value,