diff --git a/1_homebrew/Brewfile b/1_homebrew/Brewfile
index 0b7ca11..1f40099 100644
--- a/1_homebrew/Brewfile
+++ b/1_homebrew/Brewfile
@@ -9,9 +9,6 @@ brew "git"
 brew "tree"
 brew "gpg"
 brew "pinentry-mac"
-brew "gnu-tar"
-brew "pixz"
-brew "gnuplot"
 brew "imagemagick"
 brew "ffmpeg"
 brew "qpdf"
@@ -34,8 +31,6 @@ cask "gnucash"
 cask "google-chrome"
 cask "google-japanese-ime"
 cask "gpg-suite-no-mail"
-cask "inkscape"
-cask "linphone"
 cask "microsoft-office"
 cask "notion"
 cask "openinterminal"