diff --git a/pkgs/development/python-modules/sphinx-external-toc/default.nix b/pkgs/development/python-modules/sphinx-external-toc/default.nix
index 0aff8f37caa4..921669d4ca71 100644
--- a/pkgs/development/python-modules/sphinx-external-toc/default.nix
+++ b/pkgs/development/python-modules/sphinx-external-toc/default.nix
@@ -10,7 +10,7 @@
 
 buildPythonPackage rec {
   pname = "sphinx-external-toc";
-  version = "0.3.1";
+  version = "1.0.0";
 
   format = "pyproject";
 
@@ -19,7 +19,7 @@ buildPythonPackage rec {
   src = fetchPypi {
     inherit version;
     pname = "sphinx_external_toc";
-    sha256 = "9c8ea9980ea0e57bf3ce98f6a400f9b69eb1df808f7dd796c9c8cc1873d8b355";
+    sha256 = "sha256-990JX/OrD7dKMQ1BCwo2GPwd3G8s5DWJfWWayqSj6yQ=";
   };
 
   nativeBuildInputs = [ flit-core ];