diff --git a/ci/eval/default.nix b/ci/eval/default.nix
index f213bff611dd..3f31faef73ae 100644
--- a/ci/eval/default.nix
+++ b/ci/eval/default.nix
@@ -5,7 +5,7 @@
   linkFarm,
   time,
   procps,
-  nix,
+  nixVersions,
   jq,
   sta,
 }:
@@ -29,6 +29,8 @@ let
       );
     };
 
+  nix = nixVersions.nix_2_24;
+
   supportedSystems = import ../supportedSystems.nix;
 
   attrpathsSuperset =