diff --git a/release-please-config.json b/release-please-config.json
index b24f0be9..832536a0 100644
--- a/release-please-config.json
+++ b/release-please-config.json
@@ -7,7 +7,7 @@
       "bump-patch-for-minor-pre-major": false,
       "draft": false,
       "prerelease": false,
-      "extra_files": [
+      "extra-files": [
         "Sources/_Helpers/Version.swift"
       ]
     }