diff --git a/share/completions/mix.fish b/share/completions/mix.fish
index a8eb5baf19c3..16728f8796ed 100644
--- a/share/completions/mix.fish
+++ b/share/completions/mix.fish
@@ -163,7 +163,7 @@ complete -f -c mix -n '__fish_mix_using_command phx.gen.schema' -l migration -d
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l umbrella -d "Generate an umbrella project, with one application for your domain, and a second application for the web interface."
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l app -d "The name of the OTP application"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l module -d "The name of the base module in the generated skeleton"
-complete -f -c mix -n '__fish_mix_using_command phx.new' -l database -d "Specify the database adapter for Ecto"
+complete -x -c mix -n '__fish_mix_using_command phx.new' -l database -a "postgres mysql mssql sqlite3" -d "Specify the database adapter for Ecto"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-assets -d "Do not generate the assets folder"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-ecto -d "Do not generate Ecto files"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-html -d "Do not generate HTML views"
@@ -171,6 +171,8 @@ complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-gettext -d "Do no
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-dashboard -d "Do not include Phoenix.LiveDashboard"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-live -d "Comment out LiveView socket setup in assets/js/app.js"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-mailer -d "Do not generate Swoosh mailer files"
+complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-esbuild -d "Do not include esbuild dependencies and assets"
+complete -f -c mix -n '__fish_mix_using_command phx.new' -l no-tailwind -d "Do not include tailwind dependencies and assets"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l binary-id -d "Use binary_id as primary key type in Ecto schemas"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -l verbose -d "Use verbose output"
 complete -f -c mix -n '__fish_mix_using_command phx.new' -s v -l version -d "Prints the Phoenix installer version"