diff --git a/build.sbt b/build.sbt
index addec8f4..87982033 100644
--- a/build.sbt
+++ b/build.sbt
@@ -50,7 +50,7 @@ def crossScalaSettings = {
       }
     }
   Seq(
-    crossScalaVersions := Seq("2.12.20", "2.13.14", scalaVersion.value),
+    crossScalaVersions := Seq("2.12.20", "2.13.15", scalaVersion.value),
     Compile / unmanagedSourceDirectories ++= addDirsByScalaVersion("src/main").value,
     Test / unmanagedSourceDirectories ++= addDirsByScalaVersion("src/test").value,
     libraryDependencies ++= {