diff --git a/.github/scala-steward.conf b/.github/scala-steward.conf
new file mode 100644
index 0000000..17cbf0b
--- /dev/null
+++ b/.github/scala-steward.conf
@@ -0,0 +1,17 @@
+pullRequests.frequency = "@monthly"
+
+commits.message = "${artifactName} ${nextVersion} (was ${currentVersion})"
+
+pullRequests.grouping = [
+  { name = "patches", "title" = "Patch updates", "filter" = [{"version" = "patch"}] }
+]
+
+updates.pin = [
+  // sbt-less is a sbt plugin and sbt plugins use Scala 2.12
+  { groupId = "org.scala-lang", artifactId = "scala-compiler", version = "2.12." },
+  { groupId = "org.scala-lang", artifactId = "scala-library",  version = "2.12." },
+  { groupId = "org.scala-lang", artifactId = "scala-reflect",  version = "2.12." },
+  { groupId = "org.scala-lang", artifactId = "scalap",         version = "2.12." }
+]
+
+updatePullRequests = never