diff --git a/pkgs/tools/package-management/nix/modular/tests/functional/package.nix b/pkgs/tools/package-management/nix/modular/tests/functional/package.nix
index c6963ba3298a..6beb61c945a7 100644
--- a/pkgs/tools/package-management/nix/modular/tests/functional/package.nix
+++ b/pkgs/tools/package-management/nix/modular/tests/functional/package.nix
@@ -15,6 +15,7 @@
   nix-store,
   nix-expr,
   nix-cli,
+  toml11,
 
   busybox-sandbox-shell ? null,
 
@@ -72,6 +73,13 @@ mkMesonDerivation (
         echo $PWD | grep tests/functional
       '';
 
+    # `toml11` upgrade causes these to fail in 2.32+: https://github.com/NixOS/nixpkgs/pull/442682
+    # Remove when that PR lands in master.
+    ${if lib.versionAtLeast (lib.versions.majorMinor version) "2.32" then "preCheck" else null} =
+      lib.optionalString (lib.versionOlder toml11.version "4.0") ''
+        rm -f ../lang/eval-fail-fromTOML-{over,under}flow*
+      '';
+
     mesonCheckFlags = [
       "--print-errorlogs"
     ];