diff --git a/docs/3.config/0.index.md b/docs/3.config/0.index.md
index 67a9541ca1..9efe0ace8a 100644
--- a/docs/3.config/0.index.md
+++ b/docs/3.config/0.index.md
@@ -34,7 +34,7 @@ Server runtime configuration.
 
 Deployment providers introduce new features that Nitro presets can leverage, but some of them need to be explicitly opted into.
 
-Set it to latest tested date in `YY-MM-DD` format to leverage latest preset features.
+Set it to latest tested date in `YYYY-MM-DD` format to leverage latest preset features.
 
 If this configuration is not provided, Nitro will continue using the current (v2.9) behavior for presets and show a warning.