diff --git a/flake.nix b/flake.nix
index 1b9ae2e..126197c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -20,13 +20,16 @@
       nixosModules.piped = import ./module/default.nix;
       nixosModules.default = self.nixosModules.piped;
 
-      overlays.piped = final: _prev: {
+      overlays.piped = final: _prev: rec {
         piped-frontend = final.callPackage ./packages/frontend {};
         piped-backend = final.callPackage ./packages/backend {
           jre = final.openjdk19_headless;
           jdk = final.openjdk19;
         };
         piped-proxy = final.callPackage ./packages/proxy {};
+        piped-backend-deps = final.callPackage ./packages/backend/deps.nix {
+          jdk = final.openjdk19;
+        };
       };
       overlays.default = self.overlays.piped;
     }
diff --git a/packages/backend/default.nix b/packages/backend/default.nix
index c6016d7..c6be0d0 100644
--- a/packages/backend/default.nix
+++ b/packages/backend/default.nix
@@ -8,11 +8,11 @@
   perl,
   writeText,
   callPackage,
+  piped-backend-deps,
 }: let
   meta = builtins.fromJSON (builtins.readFile ../../meta.json);
 
-  deps =
-    callPackage ./deps.nix {inherit stdenv fetchFromGitHub jdk gradle perl;};
+  deps = piped-backend-deps;
 
   gradleInit = writeText "init.gradle" ''
     logger.lifecycle 'Replacing Maven repositories with ${deps}...'