diff --git a/Dangerfile b/Dangerfile
index 8bda48ec..27e92145 100644
--- a/Dangerfile
+++ b/Dangerfile
@@ -2,6 +2,11 @@ github.dismiss_out_of_range_messages
 
 # assign pr author to assignee
 if github.pr_json['assignee'] == nil
+  # skip if pr author is bot
+  if github.pr_author.include?("[bot]")
+    return
+  end
+  # assign pr author to assignee
   github.api.add_assignees(
     github.pr_json['base']['repo']['full_name'],
     github.pr_json['number'],
@@ -9,6 +14,7 @@ if github.pr_json['assignee'] == nil
   )
 end
 
+# checkstyle
 checkstyle_format.base_path = Dir.pwd
 Dir.glob("**/build/reports/**/*.xml") do |file|
   checkstyle_format.report file
diff --git a/renovate.json b/renovate.json
new file mode 100644
index 00000000..5db72dd6
--- /dev/null
+++ b/renovate.json
@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ]
+}