diff --git a/shared/1systems/wolf.nix b/shared/1systems/wolf.nix
index 73552e705..60d1e8ce8 100644
--- a/shared/1systems/wolf.nix
+++ b/shared/1systems/wolf.nix
@@ -27,7 +27,7 @@ with lib;
   krebs.build.source = {
     git.nixpkgs = {
       url = https://github.com/NixOS/nixpkgs;
-      rev = "e916273209560b302ab231606babf5ce1c481f08";
+      rev = "6d31e9b81dcd4ab927bb3dc91b612dd5abfa2f80";
     };
     dir.secrets = {
       host = config.krebs.current.host;
diff --git a/shared/2configs/collectd-base.nix b/shared/2configs/collectd-base.nix
index b2ec40b28..3b792bf23 100644
--- a/shared/2configs/collectd-base.nix
+++ b/shared/2configs/collectd-base.nix
@@ -9,7 +9,7 @@ let
       ModulePath "${collectd-connect-time}/lib/${python.libPrefix}/site-packages/"
       Import "collectd_connect_time"
       <Module collectd_connect_time>
-        target "heidi.retiolum:8080" "localhost" "google.com" "google.de" "omo.retiolum" "gum.retiolum" "gum.krebsco.de"
+        target "localhost:22" "google.com" "google.de" "gum.retiolum:22" "gum.krebsco.de" "heidi.shack:22" "10.42.0.1:22" "heise.de" "t-online.de"
         interval 10
       </Module>
     </Plugin>
@@ -18,7 +18,7 @@ let
     LoadPlugin write_graphite
     <Plugin "write_graphite">
       <Carbon>
-        Host "heidi.retiolum"
+        Host "heidi.shack"
         Port "2003"
         Prefix "retiolum."
         EscapeCharacter "_"