diff --git a/README.md b/README.md
index 8b13908..599ebfb 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ as containers can run with user privileges.
 
 You can verify your incus installation like this:
 
-    incus launch images:debian/12 local-my-setup
+    incus launch images:debian/13 local-my-setup
 
 If this command fails, please check the incus documentation.
 If you get an error about "Failed instance creation", 
diff --git a/src/cmlxc/container.py b/src/cmlxc/container.py
index a5817e7..149c454 100644
--- a/src/cmlxc/container.py
+++ b/src/cmlxc/container.py
@@ -29,7 +29,7 @@
 DOMAIN_SUFFIX = ".localchat"
 
 # Image names
-UPSTREAM_IMAGE = "images:debian/12"
+UPSTREAM_IMAGE = "images:debian/13"
 BASE_IMAGE_ALIAS = "localchat-base"
 
 # Builder container