diff --git a/changes/3822.bugfix.md b/changes/3822.bugfix.md
new file mode 100644
index 0000000000..71347a18ce
--- /dev/null
+++ b/changes/3822.bugfix.md
@@ -0,0 +1 @@
+Moved legacy `static/toga.css` into `deploy/inserts/static/css/briefcase.css~css` and removed the deprecated static file, completing the migration to insert-based web styling.
diff --git a/web/src/toga_web/static/toga.css b/web/src/toga_web/deploy/inserts/static/css/style.css~css
similarity index 100%
rename from web/src/toga_web/static/toga.css
rename to web/src/toga_web/deploy/inserts/static/css/style.css~css