diff --git a/.github/workflows/update-default.yml b/.github/workflows/update-default.yml
deleted file mode 100644
index a42a638..0000000
--- a/.github/workflows/update-default.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-on:
-  push:
-    branches:
-    - main
-jobs:
-  update_default:
-    runs-on: ubuntu-latest
-    timeout-minutes: 3
-    permissions:
-      contents: write
-      issues: write
-      pull-requests: write
-    steps:
-      - uses: actions/checkout@v4
-      - id: update_default
-        run: |
-          SBT_VERSION=$(grep '^sbt\.version' "project/build.properties" | tr '=\r' ' ' | awk '{ print $2; }')
-          yq e -i ".inputs.sbt-runner-version.default = \"${SBT_VERSION}\"" action.yml
-          git add action.yml
-          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git config --global user.name "github actions"
-          if git commit -m "update default sbt version to ${SBT_VERSION}"; then
-            echo "changed=true" >> $GITHUB_OUTPUT
-            echo "sbt_version=${SBT_VERSION}" >> $GITHUB_OUTPUT
-          else
-            echo "changed=false" >> $GITHUB_OUTPUT
-          fi
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Create Pull Request
-        if: steps.update_default.outputs.changed == 'true'
-        uses: peter-evans/create-pull-request@v7
-        with:
-          title: "deps: Update sbt to ${{ steps.update_default.outputs.sbt_version }}"
-          branch: "update-default-sbt-${{ steps.update_default.outputs.sbt_version }}"
-          base: ${{ github.head_ref }}
diff --git a/.scala-steward.conf b/.scala-steward.conf
new file mode 100644
index 0000000..496555c
--- /dev/null
+++ b/.scala-steward.conf
@@ -0,0 +1,8 @@
+postUpdateHooks = [
+  {
+    command = ["sbt", "updateYml"],
+    commitMessage = "Regenerated action.yml",
+    groupId = "org.scala-sbt",
+    artifactId = "sbt"
+  }
+]
diff --git a/build.sbt b/build.sbt
index e69de29..8dd70c1 100644
--- a/build.sbt
+++ b/build.sbt
@@ -0,0 +1,5 @@
+TaskKey[Unit]("updateYml") := {
+  import scala.sys.process.Process
+
+  Process("yq", Seq("e", "-i", s""".inputs.sbt-runner-version.default = "${sbtVersion.value}"""", "action.yml")).!
+}