diff --git a/brew.sh b/brew.sh
index 8c457fb..b47abce 100755
--- a/brew.sh
+++ b/brew.sh
@@ -96,6 +96,7 @@ brew install rename
 brew install rhino
 brew install speedtest_cli
 brew install ssh-copy-id
+brew install testssl
 brew install tree
 brew install webkit2png
 brew install zopfli