diff --git a/.github/scala-steward.conf b/.github/scala-steward.conf
new file mode 100644
index 0000000..c1edb11
--- /dev/null
+++ b/.github/scala-steward.conf
@@ -0,0 +1,3 @@
+# If true, Scala Steward will sign off all commits (e.g. `git --signoff`).
+# Default: false
+signoffCommits = true