diff --git a/README.md b/README.md
index 3b1eba6..49e1e5e 100644
--- a/README.md
+++ b/README.md
@@ -223,6 +223,7 @@ You can use any of the following methods to build.
     - [soundcloud](https://www.apkmirror.com/apk/soundcloud/soundcloud-soundcloud/)
     - [stocard](https://www.apkmirror.com/apk/stocard-gmbh/stocard-rewards-cards-wallet/)
     - [willhaben](https://www.apkmirror.com/apk/willhaben/willhaben/)
+    - [proton-mail](https://www.apkmirror.com/apk/proton-technologies-ag/protonmail-encrypted-email/)
 
     <br>`**` - You can also patch any other app which is **not** supported officially.To do so, you need to provide
    few more inputs to the tool which are mentioned below. These config will override the sources config from the tool.
diff --git a/src/downloader/sources.py b/src/downloader/sources.py
index 34300be..c70599f 100644
--- a/src/downloader/sources.py
+++ b/src/downloader/sources.py
@@ -91,4 +91,5 @@ apk_sources = {
     "soundcloud": f"{APK_MIRROR_BASE_APK_URL}/soundcloud/soundcloud-soundcloud/",
     "stocard": f"{APK_MIRROR_BASE_APK_URL}/stocard-gmbh/stocard-rewards-cards-wallet/",
     "willhaben": f"{APK_MIRROR_BASE_APK_URL}/willhaben/willhaben/",
+    "proton-mail": f"{APK_MIRROR_BASE_APK_URL}/proton-technologies-ag/protonmail-encrypted-email/",
 }
diff --git a/src/patches.py b/src/patches.py
index c85be5a..16eb9b8 100644
--- a/src/patches.py
+++ b/src/patches.py
@@ -81,6 +81,7 @@ class Patches(object):
         "com.soundcloud.android": "soundcloud",
         "de.stocard.stocard": "stocard",
         "at.willhaben": "willhaben",
+        "ch.protonmail.android": "proton-mail",
     }
 
     @staticmethod