diff --git a/README.md b/README.md
index 26f8a55..fa544e2 100644
--- a/README.md
+++ b/README.md
@@ -45,12 +45,14 @@ Hat.sh is a web app that provides secure local file encryption in the browser. I
 
 ## Screenshots
 
-![Screenshot of Hat.sh](./doc/screenshots/screenshot.gif)
+![Screenshot of Hat.sh](./doc/screenshots/screenshot.png)
 
+## Disclaimers / important information
+
+Hat.sh requires a dedicated domain or subdomain.
 ## Documentation and resources
 
 * Official app website: <hat.sh>
-* Official user documentation: <https://yunohost.org/apps>
 * Official admin documentation: <https://hat.sh/about/>
 * Upstream app code repository: <https://github.com/sh-dv/hat.sh>
 * YunoHost documentation for this app: <https://yunohost.org/app_hat>
diff --git a/README_fr.md b/README_fr.md
index aad24d4..ddcab2b 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -45,12 +45,14 @@ Hat.sh is a web app that provides secure local file encryption in the browser. I
 
 ## Captures d'écran
 
-![Capture d'écran de Hat.sh](./doc/screenshots/screenshot.gif)
+![Capture d'écran de Hat.sh](./doc/screenshots/screenshot.png)
 
+## Avertissements / informations importantes
+
+Hat.sh requires a dedicated domain or subdomain.
 ## Documentations et ressources
 
 * Site officiel de l'app : <hat.sh>
-* Documentation officielle utilisateur : <https://yunohost.org/apps>
 * Documentation officielle de l'admin : <https://hat.sh/about/>
 * Dépôt de code officiel de l'app : <https://github.com/sh-dv/hat.sh>
 * Documentation YunoHost pour cette app : <https://yunohost.org/app_hat>
diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
index e69de29..c8c5e1e 100644
--- a/doc/DISCLAIMER.md
+++ b/doc/DISCLAIMER.md
@@ -0,0 +1 @@
+Hat.sh requires a dedicated domain or subdomain.
\ No newline at end of file
diff --git a/doc/screenshots/screenshot.gif b/doc/screenshots/screenshot.gif
deleted file mode 100644
index 4f7f622..0000000
Binary files a/doc/screenshots/screenshot.gif and /dev/null differ
diff --git a/doc/screenshots/screenshot.png b/doc/screenshots/screenshot.png
new file mode 100644
index 0000000..04e3143
Binary files /dev/null and b/doc/screenshots/screenshot.png differ
diff --git a/manifest.json b/manifest.json
index 8ebcf38..546667c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -13,7 +13,6 @@
         "website": "hat.sh",
         "demo": "https://hat.sh",
         "admindoc": "https://hat.sh/about/",
-        "userdoc": "https://yunohost.org/apps",
         "code": "https://github.com/sh-dv/hat.sh"
     },
     "license": "MIT",
@@ -22,7 +21,7 @@
         "email": ""
     },
     "requirements": {
-        "yunohost": ">= 4.3.0"
+        "yunohost": ">= 11.0.9"
     },
     "multi_instance": false,
     "services": [
diff --git a/scripts/upgrade b/scripts/upgrade
index bb5a5e1..1df7209 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -67,7 +67,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=4
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path" --keep="$final_path/.env"
+	ynh_setup_source --dest_dir="$final_path" --keep=".env"
 fi
 
 chmod 750 "$final_path"