diff --git a/lass/2configs/nixpkgs.nix b/lass/2configs/nixpkgs.nix
index 7f6512552..24437d040 100644
--- a/lass/2configs/nixpkgs.nix
+++ b/lass/2configs/nixpkgs.nix
@@ -3,6 +3,6 @@
 {
   krebs.build.source.nixpkgs.git = {
     url = https://cgit.lassul.us/nixpkgs;
-    ref = "ade5837";
+    ref = "a563923";
   };
 }