diff --git a/flake.nix b/flake.nix
index 160f3db..8066b55 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,16 +32,12 @@
         };
         dockerImage = pkgs.dockerTools.buildImage {
           name = "policy_service";
-          fromImageName = "hexpm/elixir";
-          fromImageTag = "1.17.5-erlang-27.0-debian-bookworm-20240612";
-          copyToRoot = pkgs.buildEnv {
-            name = "policy-service";
-            paths = [ package ];
-            pathsToLink = [ "/bin" ];
-          };
+          contents = [
+            package
+            pkgs.busybox
+          ];
           config = {
-            Cmd = [ "/bin/bash" ];
-            WorkingDir = "/";
+            Cmd = [ "${package}/bin/policy_service" "start" ];
           };
         };
       in