diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index 4d9e9d5..f90482a 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -28,7 +28,7 @@ jobs:
       matrix:
         # supported scala versions
         include:
-          - scala: 2.13.10
+          - scala: 2.13.15
             name: Scala2_13
             test-tasks: coverage test coverageReport
           - scala: 3.3.4
diff --git a/build.sbt b/build.sbt
index abd8989..05c700a 100644
--- a/build.sbt
+++ b/build.sbt
@@ -92,7 +92,7 @@ lazy val noPublishSettings = Seq(
 
 lazy val baseSettings = Seq(
   // scala options
-  crossScalaVersions := List("2.13.10", "3.3.4"),
+  crossScalaVersions := List("2.13.15", "3.3.4"),
   scalaVersion       := crossScalaVersions.value.head,
   scalacOptions ++= scalacSettings(scalaVersion.value),
   Compile / console / scalacOptions --= Seq(