diff --git a/.circleci/config.yml b/.circleci/config.yml
index feeec238..47fd24a3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -16,7 +16,7 @@ executors:
       - image: cimg/openjdk:11.0
     resource_class: medium+
     environment:
-      SCALA_VERSION: 2.13.12
+      SCALA_VERSION: 2.13.15
 
 commands:
   build:
diff --git a/build.sbt b/build.sbt
index b0855877..6e30ddaa 100644
--- a/build.sbt
+++ b/build.sbt
@@ -50,7 +50,7 @@ val commonSettings = Sonatype.sonatypeSettings ++ releaseSettings ++ Seq(
   name := "ratatool",
   description := "A tool for random data sampling and generation",
   scalaVersion := "2.12.18",
-  crossScalaVersions := Seq("2.12.18", "2.13.12"),
+  crossScalaVersions := Seq("2.12.18", "2.13.15"),
   resolvers ++= Resolver.sonatypeOssRepos("public"),
   resolvers ++= Resolver.sonatypeOssRepos("snapshots"), // @Todo remove when 0.14.0 released
   scalacOptions ++= Seq("-target:8", "-deprecation", "-feature", "-unchecked", "-Yrangepos"),