diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8a22ef8..5f007f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         java: [8, 11, 17]
-        scala: [2.11.12, 2.12.15, 2.13.8, 3.0.2]
+        scala: [2.11.x, 2.12.x, 2.13.x, 3.x]
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
diff --git a/build.sbt b/build.sbt
index 6c3449a..0950d13 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 lazy val scalaTestVersion = "3.2.10"
 
-ThisBuild / crossScalaVersions := Seq("3.0.2", "2.13.8", "2.12.15", "2.11.12")
+ThisBuild / crossScalaVersions := Seq("3.1.3", "2.13.8", "2.12.16", "2.11.12")
 ThisBuild / scalaVersion := crossScalaVersions.value.head
 
 // We use <epoch>.<major>.<minor> like 99% of Scala libraries.
diff --git a/project/build.properties b/project/build.properties
index 3161d21..22af262 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.6.1
+sbt.version=1.7.1