diff --git a/sbt-plugin/build.sbt b/sbt-plugin/build.sbt
index b72a6b1..a526c06 100644
--- a/sbt-plugin/build.sbt
+++ b/sbt-plugin/build.sbt
@@ -27,7 +27,7 @@ val `sbt-github-dependency-submission` = project
   .settings(
     name := "sbt-github-dependency-submission",
     sbtVersion := "1.5.8",
-    scalaVersion := "2.12.20",
+    scalaVersion := "2.13.16",
     scalacOptions ++= Seq(
       "-deprecation",
       "-encoding",
diff --git a/sbt-plugin/src/sbt-test/dependency-manifest/coursier-manifest/build.sbt b/sbt-plugin/src/sbt-test/dependency-manifest/coursier-manifest/build.sbt
index b1cc2e9..388b96f 100644
--- a/sbt-plugin/src/sbt-test/dependency-manifest/coursier-manifest/build.sbt
+++ b/sbt-plugin/src/sbt-test/dependency-manifest/coursier-manifest/build.sbt
@@ -10,7 +10,7 @@ inThisBuild(
     organization := "ch.epfl.scala",
     version := "1.2.0-SNAPSHOT",
     useCoursier := true,
-    scalaVersion := "2.12.20"
+    scalaVersion := "2.13.16"
   )
 )
 
diff --git a/sbt-plugin/src/sbt-test/dependency-manifest/ivy-manifest/build.sbt b/sbt-plugin/src/sbt-test/dependency-manifest/ivy-manifest/build.sbt
index b152244..b10ed8c 100644
--- a/sbt-plugin/src/sbt-test/dependency-manifest/ivy-manifest/build.sbt
+++ b/sbt-plugin/src/sbt-test/dependency-manifest/ivy-manifest/build.sbt
@@ -10,7 +10,7 @@ inThisBuild(
     organization := "ch.epfl.scala",
     version := "1.2.0-SNAPSHOT",
     useCoursier := false, // use Ivy
-    scalaVersion := "2.12.20"
+    scalaVersion := "2.13.16"
   )
 )
 
diff --git a/sbt-plugin/src/sbt-test/dependency-manifest/package-urls/build.sbt b/sbt-plugin/src/sbt-test/dependency-manifest/package-urls/build.sbt
index 02c390e..200a433 100644
--- a/sbt-plugin/src/sbt-test/dependency-manifest/package-urls/build.sbt
+++ b/sbt-plugin/src/sbt-test/dependency-manifest/package-urls/build.sbt
@@ -11,7 +11,7 @@ inThisBuild(
     version := "1.2.0-SNAPSHOT",
     // use Ivy because Coursier does not allow several classifier on the same dep
     useCoursier := false,
-    scalaVersion := "2.12.20"
+    scalaVersion := "2.13.16"
   )
 )