diff --git a/pkgs/tools/admin/elasticsearch-curator/default.nix b/pkgs/tools/admin/elasticsearch-curator/default.nix
index 87ad72ea4759..b33aa22dd304 100644
--- a/pkgs/tools/admin/elasticsearch-curator/default.nix
+++ b/pkgs/tools/admin/elasticsearch-curator/default.nix
@@ -7,7 +7,7 @@ let
         version = "7.1.2";
         src = old.src.override {
           inherit version;
-          sha256 = "d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a";
+          hash = "sha256-0rUlXHxjSbwb0eWeCM0SrLvWPOZJ8liHVXg6qU37axo=";
         };
       });
       requests-aws4auth = super.requests-aws4auth.overridePythonAttrs (old: {