diff --git a/CHANGES.md b/CHANGES.md
index 88032be..ee69eb2 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,8 @@
 
 Unreleased
 
+- Submit is disabled by default.
+
 ## Version 0.1.0
 
 Released 2025-01-14
diff --git a/src/modify_repos/script/github.py b/src/modify_repos/script/github.py
index 258df06..e22d889 100644
--- a/src/modify_repos/script/github.py
+++ b/src/modify_repos/script/github.py
@@ -17,7 +17,7 @@ class GitHubScript(Script[GitHubRepo]):
     orgs: list[str]
     """The list of GitHub users/orgs to clone repositories from."""
 
-    def __init__(self, *, submit: bool = True, orgs: list[str] | None = None) -> None:
+    def __init__(self, *, submit: bool = False, orgs: list[str] | None = None) -> None:
         super().__init__(submit=submit)
 
         if orgs is not None: