diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c81d9d976..be20134b1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        scalaversion: ["2.11.12", "2.12.10", "2.13.1", "3.0.1"]
+        scalaversion: ["2.11.12", "2.12.12", "2.13.4", "3.0.1"]
     steps:
       - uses: actions/checkout@v2
       - uses: olafurpg/setup-scala@v10
diff --git a/build.sbt b/build.sbt
index e2dc6c782..d6a4cc3a6 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,7 +5,7 @@ lazy val root = project.in(file(".")).
 
 name := "Scala.js DOM"
 
-ThisBuild / crossScalaVersions := Seq("2.12.10", "2.11.12", "2.13.1", "3.0.1")
+ThisBuild / crossScalaVersions := Seq("2.12.12", "2.11.12", "2.13.4", "3.0.1")
 ThisBuild / scalaVersion := crossScalaVersions.value.head
 
 val commonSettings = Seq(