diff --git a/flake.lock b/flake.lock
index 531c7ca..01dfff2 100644
--- a/flake.lock
+++ b/flake.lock
@@ -27,11 +27,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1712512137,
-        "narHash": "sha256-crxzFc3lc/ViHYVK+IKmIbifxF6zyHgSwhBKd0lLgWE=",
+        "lastModified": 1724513039,
+        "narHash": "sha256-YdBuRgXEU9CcxPd2EjuvDKcfgxL1kk9Gv8nFVVjIros=",
         "ref": "refs/heads/main",
-        "rev": "221052d8465f0a4437cb8cae3cc9998c87e88f68",
-        "revCount": 2,
+        "rev": "202f4a1a5791c74a9b7d69a4e63e631bdbe36ba6",
+        "revCount": 4,
         "type": "git",
         "url": "https://git.clerie.de/clerie/bij.git"
       },
diff --git a/hosts/carbon/ppp.nix b/hosts/carbon/ppp.nix
index 55c1e93..1de2f19 100644
--- a/hosts/carbon/ppp.nix
+++ b/hosts/carbon/ppp.nix
@@ -58,10 +58,9 @@
   '';
 
   networking.interfaces.net-heimnetz.useDHCP = true;
-  networking.interfaces.ppp-dtagdsl.useDHCP = true;
 
   networking.dhcpcd = {
-    enable = true;
+    enable = false;
     allowInterfaces = [
       "net-heimnetz"
       "ppp-dtagdsl"