diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6ab8b54..4c4cf86 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,13 +12,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        scalaversion: ["2.11.12", "2.12.11", "2.13.2"]
+        scalaversion: ["2.11.12", "2.12.18", "2.13.11", "3.3.0"]
     steps:
-      - uses: actions/checkout@v2
-      - uses: olafurpg/setup-scala@v10
+      - uses: actions/checkout@v3
+      - uses: olafurpg/setup-scala@v14
         with:
           java-version: "adopt@1.8"
-      - uses: coursier/cache-action@v5
+      - uses: coursier/cache-action@v6
       - name: Build
         run: sbt "++${{ matrix.scalaversion }}" publishLocal
       - name: MiMa
diff --git a/build.sbt b/build.sbt
index ba2b1dd..aa6ce49 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,8 +4,8 @@ val newScalaBinaryVersionsInThisRelease: Set[String] = Set()
 inThisBuild(Def.settings(
   version := "1.1.2-SNAPSHOT",
   organization := "org.scala-js",
-  scalaVersion := "2.12.11",
-  crossScalaVersions := Seq("2.11.12", "2.12.11", "2.13.2"),
+  scalaVersion := crossScalaVersions.value.last,
+  crossScalaVersions := Seq("2.11.12", "2.12.18", "2.13.11", "3.3.0"),
   scalacOptions ++= Seq(
     "-deprecation",
     "-feature",
diff --git a/project/build.properties b/project/build.properties
index 9edb75b..875b706 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.4
+sbt.version=1.9.2
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 2a00028..2a4129c 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,2 +1,2 @@
-addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.6.0")
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.8.1")
+addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.10.0")
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.3")