diff --git a/hooks/post_cert_update b/hooks/post_cert_update
new file mode 100755
index 0000000..a92da95
--- /dev/null
+++ b/hooks/post_cert_update
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+domain=$1
+app=$(basename "$0")
+app=${app#50-} # all hooks are nammed "50-$app".
+
+systemctl restart "$app"
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index e0147ed..4b587f6 100644
--- a/manifest.json
+++ b/manifest.json
@@ -13,9 +13,9 @@
         "email": "jean-baptiste@holcroft.fr"
     },
     "requirements": {
-        "yunohost": ">= 3.1.0"
+        "yunohost": ">= 3.4.0"
     },
-    "version": "1.2.8~ynh6",
+    "version": "1.2.8~ynh7",
     "multi_instance": true,
     "services": [
     ],