diff --git a/build.sbt b/build.sbt
index 0716acd..39d834f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -24,7 +24,7 @@ ThisBuild / tlCiReleaseBranches := Seq("main")
 ThisBuild / githubWorkflowJavaVersions := Seq(JavaSpec.temurin("11"))
 ThisBuild / tlJdkRelease := Some(8)
 
-val Scala212 = "2.12.19"
+val Scala212 = "2.12.20"
 val Scala213 = "2.13.14"
 ThisBuild / crossScalaVersions := Seq(Scala212, Scala213, "3.3.3")
 ThisBuild / scalaVersion := Scala213 // the default Scala