diff --git a/bin/omarchy-webapp-handler-hey b/bin/omarchy-webapp-handler-hey
new file mode 100755
index 00000000..37f4cf2d
--- /dev/null
+++ b/bin/omarchy-webapp-handler-hey
@@ -0,0 +1,11 @@
+#!/bin/bash
+url="$1"
+web_url="https://app.hey.com"
+
+# Handle mailto: URLs
+if [[ $url =~ ^mailto: ]]; then
+  email=$(echo "$url" | sed 's/mailto://')
+  web_url="https://app.hey.com/messages/new?to=$email"
+fi
+
+exec omarchy-launch-webapp "$web_url"
diff --git a/install/config/mimetypes.sh b/install/config/mimetypes.sh
index 48bb8cfa..ee662f55 100644
--- a/install/config/mimetypes.sh
+++ b/install/config/mimetypes.sh
@@ -33,3 +33,6 @@ xdg-mime default mpv.desktop video/x-ms-asf
 xdg-mime default mpv.desktop video/x-ogm+ogg
 xdg-mime default mpv.desktop video/x-theora+ogg
 xdg-mime default mpv.desktop application/ogg
+
+# Use Hey for mailto: links
+xdg-mime default HEY.desktop x-scheme-handler/mailto
diff --git a/install/packaging/webapps.sh b/install/packaging/webapps.sh
index df20bd3e..c5f7350b 100644
--- a/install/packaging/webapps.sh
+++ b/install/packaging/webapps.sh
@@ -1,4 +1,4 @@
-omarchy-webapp-install "HEY" https://app.hey.com HEY.png
+omarchy-webapp-install "HEY" https://app.hey.com HEY.png "omarchy-webapp-handler-hey %u" "x-scheme-handler/mailto"
 omarchy-webapp-install "Basecamp" https://launchpad.37signals.com Basecamp.png
 omarchy-webapp-install "WhatsApp" https://web.whatsapp.com/ WhatsApp.png
 omarchy-webapp-install "Google Photos" https://photos.google.com/ "Google Photos.png"