diff --git a/build.sbt b/build.sbt
index fc20a11..39daf01 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,7 +1,7 @@
 import org.typelevel.sbt.gha.MatrixExclude
 import org.typelevel.scalacoptions.ScalacOptions
 
-ThisBuild / crossScalaVersions := Seq("3.3.3", "2.13.14", "2.12.19")
+ThisBuild / crossScalaVersions := Seq("3.3.3", "2.13.14", "2.12.20")
 ThisBuild / scalaVersion := (ThisBuild / crossScalaVersions).value.head
 ThisBuild / githubWorkflowBuildMatrixExclusions := Seq(
   MatrixExclude(Map(