diff --git a/.gitignore b/.gitignore
index 6228718..4750fd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,8 @@ node_modules
 data/
 *.sqlite3
 *.sqlite3-journal
+
+# uv lockfile — pyproject.toml still uses [tool.poetry] syntax, so uv lock
+# produces a header-only file that pins nothing. Ignore until the
+# PEP 621 migration lands (aiolabs/satmachineadmin#28).
+uv.lock