diff --git a/containers/shower/default.nix b/containers/shower/default.nix
index a59e3ab..c968a7b 100644
--- a/containers/shower/default.nix
+++ b/containers/shower/default.nix
@@ -107,7 +107,7 @@ let
     outputHashAlgo = "sha256";
     # Pinned dep closure — reproducible until version bumps. To recompute,
     # set to pkgs.lib.fakeHash and read the failure.
-    outputHash = pkgs.lib.fakeHash;
+    outputHash = "sha256-tSTH/HaDY7M0qxlauBTM+JekZAgF++K2lGP3PLvym/o=";
 
     dontFixup = true;
   };