diff --git a/meta/nodes.nix b/meta/nodes.nix
index 2fb1949..f292ac9 100644
--- a/meta/nodes.nix
+++ b/meta/nodes.nix
@@ -20,6 +20,6 @@ NODE_NAME = {
       targetHost = "129.199.129.200";
     };
 
-    nixpkgs = "unstable";
+    nixpkgs = "23.05";
   };
 }