diff --git a/typer/main.py b/typer/main.py
index a23c3c0f5d..71c2f345d8 100644
--- a/typer/main.py
+++ b/typer/main.py
@@ -151,7 +151,7 @@ def __init__(
         rich_markup_mode: MarkupMode = Default(DEFAULT_MARKUP_MODE),
         rich_help_panel: Union[str, None] = Default(None),
         pretty_exceptions_enable: bool = True,
-        pretty_exceptions_show_locals: bool = True,
+        pretty_exceptions_show_locals: bool = False,
         pretty_exceptions_short: bool = True,
     ):
         self._add_completion = add_completion