diff --git a/default.nix b/default.nix
index e0306be5..3d57a5d9 100644
--- a/default.nix
+++ b/default.nix
@@ -27,6 +27,7 @@ makeScript {
       __nixpkgs__.git
       __nixpkgs__.gnutar
       __nixpkgs__.gzip
+      __nixpkgs__.nixStable
       __nixpkgs__.python38
     ];
   };
diff --git a/src/cli/main/__main__.py b/src/cli/main/__main__.py
index 55abf1af..5ad0bfcc 100644
--- a/src/cli/main/__main__.py
+++ b/src/cli/main/__main__.py
@@ -378,11 +378,9 @@ def cache_push(cache: List[Dict[str, str]], out: str) -> None:
     for config in cache:
         if config["type"] == "cachix" and "CACHIX_AUTH_TOKEN" in environ:
             _log("Pushing to cache")
-            _, stdout, _ = _run(["nix-store", "-qR", out])
             _run(
-                args=["cachix", "push", "-c", "0", config["name"]],
+                args=["cachix", "push", "-c", "0", config["name"], out],
                 capture_io=False,
-                stdin=stdout,
             )
             return