diff --git a/pkg/brew/watchexec.rb b/pkg/brew/watchexec.rb
new file mode 100644
index 0000000..0ea665d
--- /dev/null
+++ b/pkg/brew/watchexec.rb
@@ -0,0 +1,17 @@
+class Watchexec < Formula
+  desc "Execute commands when watched files change"
+  homepage "https://github.com/mattgreen/watchexec"
+  url "https://github.com/mattgreen/watchexec/releases/download/0.10.0/watchexec_osx_0.10.0.tar.gz"
+  version "0.10.0"
+  sha256 "0a2eae6fc0f88614bdc732b233b0084a3aa6208177c52c4d2ecb0a671f55d82b"
+
+  bottle :unneeded
+
+  def install
+    bin.install "watchexec"
+  end
+
+  test do
+    system "#{bin}/watchexec", "--version"
+  end
+end