diff --git a/templates/sources.list.j2 b/templates/sources.list.j2
index 9b4d18c..a47a728 100644
--- a/templates/sources.list.j2
+++ b/templates/sources.list.j2
@@ -2,10 +2,10 @@
 deb https://mirror.yandex.ru/debian sid main{% if debian_repo_nonfree is true %} contrib non-free{% endif %}
 
 {% else %}
-deb https://mirror.yandex.ru/debian {{ debian_repo }} main{% if debian_repo_nonfree is true %} contrib non-free{% endif %}
+deb https://mirror.yandex.ru/debian {{ debian_repo }} main{% if debian_repo_nonfree is true %} contrib non-free{% if debian_repo == "bookworm" %} non-free-firmware{% endif %}{% endif %}
 
-deb https://mirror.yandex.ru/debian {{ debian_repo }}-updates main{% if debian_repo_nonfree is true %} contrib non-free{% endif %}
+deb https://mirror.yandex.ru/debian {{ debian_repo }}-updates main{% if debian_repo_nonfree is true %} contrib non-free{% if debian_repo == "bookworm" %} non-free-firmware{% endif %}{% endif %}
 
-deb http://security.debian.org/debian-security/ {{ debian_repo }}-security main{% if debian_repo_nonfree is true %} contrib non-free{% endif %}
+deb http://security.debian.org/debian-security/ {{ debian_repo }}-security main{% if debian_repo_nonfree is true %} contrib non-free{% if debian_repo == "bookworm" %} non-free-firmware{% endif %}{% endif %}
 
 {% endif %}