diff --git a/logical/ascanius.nix b/logical/ascanius.nix
index 5d7cd20..26021ce 100644
--- a/logical/ascanius.nix
+++ b/logical/ascanius.nix
@@ -8,4 +8,12 @@
 
   system.stateVersion = "17.09";
 
+
+  nix.binaryCaches = [
+    "https://cache.nixos.org"
+    "https://builder.serokell.review"
+  ];
+  nix.binaryCachePublicKeys = [
+    "serokell:ic/49yTkeFIk4EBX1CZ/Wlt5fQfV7yCifaJyoM+S3Ss="
+  ];
 }