diff --git a/pkgs/development/python-modules/sphinx-book-theme/default.nix b/pkgs/development/python-modules/sphinx-book-theme/default.nix
index 8bf1b75edb99..4677ebf9a89b 100644
--- a/pkgs/development/python-modules/sphinx-book-theme/default.nix
+++ b/pkgs/development/python-modules/sphinx-book-theme/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "sphinx-book-theme";
-  version = "1.2.0";
+  version = "1.4.0";
 
   format = "wheel";
 
@@ -19,7 +19,7 @@ buildPythonPackage rec {
     dist = "py3";
     python = "py3";
     pname = "sphinx_book_theme";
-    hash = "sha256-cJYF0wjhmRxe8M8ZxIHb6QhLYoUuMX+vq3Q4Kg7nzPo=";
+    hash = "sha256-EP1X1mfuC1ZZKMPOlVYuKBxdG5S9Wiqvxc1BpdSY3NA=";
   };
 
   dependencies = [