diff --git a/build.sbt b/build.sbt
index c463dfa..f61d532 100644
--- a/build.sbt
+++ b/build.sbt
@@ -24,7 +24,7 @@ import xerial.sbt.Sonatype.sonatypeCentralHost
 lazy val Common = config("common") extend (Compile)
 lazy val Edifact = config("xsd") extend (Compile)
 
-lazy val scala212 = "2.12.20"
+lazy val scala212 = "2.13.16"
 lazy val scala213 = "2.13.10"
 lazy val scala33 = "3.3.6"
 
diff --git a/sbt/src/sbt-test/sbt-delightful-edifact/simple/build.sbt b/sbt/src/sbt-test/sbt-delightful-edifact/simple/build.sbt
index 8277c7d..487e2b8 100644
--- a/sbt/src/sbt-test/sbt-delightful-edifact/simple/build.sbt
+++ b/sbt/src/sbt-test/sbt-delightful-edifact/simple/build.sbt
@@ -12,7 +12,7 @@
 //
 // You should have received a copy of the GNU Lesser General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
-scalaVersion := "2.12.20"
+scalaVersion := "2.13.16"
 name := "foo"
 libraryDependencies ++= Seq(
   "org.sweet-delights"     %% "delightful-edifact"       % s"${sys.props.getOrElse("plugin.version", "0")}",