diff --git a/src/templates/welcome/de.html b/src/templates/welcome/de.html
index dfc4e20..16cb0e3 100644
--- a/src/templates/welcome/de.html
+++ b/src/templates/welcome/de.html
@@ -10,7 +10,7 @@
 		<link
 			rel="preload"
 			as="image"
-			href="https://barcodeapi.org/api/8/12345670?"
+			href="{{barcode_url}}"
 		/>
 		<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
 		<meta name="x-apple-disable-message-reformatting" />
@@ -203,7 +203,7 @@
 										<img
 											title="Dein Registrierungs-Code"
 											alt="Dein Registrierungs-Code"
-											src="https://barcodeapi.org/api/8/12345670?"
+											src="{{barcode_url}}"
 											style="
 												display: block;
 												outline: none;
diff --git a/src/templates/welcome/en.html b/src/templates/welcome/en.html
index f615bb2..1990ae7 100644
--- a/src/templates/welcome/en.html
+++ b/src/templates/welcome/en.html
@@ -10,7 +10,7 @@
 		<link
 			rel="preload"
 			as="image"
-			href="https://barcodeapi.org/api/8/12345670?"
+			href="{{barcode_url}}"
 		/>
 		<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
 		<meta name="x-apple-disable-message-reformatting" />
@@ -202,7 +202,7 @@
 										<img
 											title="Your registration code"
 											alt="Your registration code"
-											src="https://barcodeapi.org/api/8/12345670?"
+											src="{{barcode_url}}"
 											style="
 												display: block;
 												outline: none;