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-rw-r--r--pkgs/development/haskell-modules/configuration-nix.nix3
1 files changed, 2 insertions, 1 deletions
diff --git a/pkgs/development/haskell-modules/configuration-nix.nix b/pkgs/development/haskell-modules/configuration-nix.nix
index 770300da612e4..57b1bb42fed45 100644
--- a/pkgs/development/haskell-modules/configuration-nix.nix
+++ b/pkgs/development/haskell-modules/configuration-nix.nix
@@ -1115,10 +1115,11 @@ self: super: builtins.intersectAttrs super {
 
   hercules-ci-agent = super.hercules-ci-agent.override { nix = self.hercules-ci-cnix-store.passthru.nixPackage; };
   hercules-ci-cnix-expr = addTestToolDepend pkgs.git (super.hercules-ci-cnix-expr.override { nix = self.hercules-ci-cnix-store.passthru.nixPackage; });
+  hercules-ci-cnix-store-nix = pkgs.nixVersions.nix_2_18;
   hercules-ci-cnix-store = overrideCabal
     (old: {
       passthru = old.passthru or { } // {
-        nixPackage = pkgs.nixVersions.nix_2_16;
+        nixPackage = self.hercules-ci-cnix-store-nix or pkgs.nixVersions.nix_2_18;
       };
     })
     (super.hercules-ci-cnix-store.override {