diff --git a/pkgs/by-name/si/sideband/package.nix b/pkgs/by-name/si/sideband/package.nix
index 9cc4115a78f8..1019a28613a2 100644
--- a/pkgs/by-name/si/sideband/package.nix
+++ b/pkgs/by-name/si/sideband/package.nix
@@ -22,9 +22,6 @@ python313Packages.buildPythonApplication (finalAttrs: {
   # Reason: An owner of this repository has disabled the ability to open pull requests.
   postPatch = ''
     substituteInPlace setup.py \
-      --replace-fail \
-        "lxst>=0.4.6" \
-        "lxst" \
       --replace-fail \
         '"kivymd")' \
         '"sbapp/kivymd")'