1 files changed, 7 insertions, 1 deletions

diff --git a/hosts/surtr/postgresql/default.nix b/hosts/surtr/postgresql/default.nix
index 8c373f49..faf74588 100644
--- a/hosts/surtr/postgresql/default.nix
+++ b/hosts/surtr/postgresql/default.nix
@@ -3,6 +3,12 @@ let
   versioning = sources.psql-versioning.src;
 in {
   config = {
+    assertions = [
+      (let
+        inherit (config.services.pgbackrest.package) version;
+      in { assertion = version == "2.45"; message = "Presumably incompatible pgBackRest version: ${version}"; })
+    ];
+
     services.postgresql = {
       enable = true;
       package = pkgs.postgresql_14;
@@ -10,7 +16,7 @@ in {
 
     services.pgbackrest = {
       enable = true;
-      package = flakeInputs.nixpkgs-stable.legacyPackages.${config.nixpkgs.system}.pgbackrest;
+      package = flakeInputs.nixpkgs-pgbackrest.legacyPackages.${config.nixpkgs.system}.pgbackrest;
 
       settings = {
         "surtr" = {