diff --git a/pkgs/development/python-modules/sphinx_rtd_theme/default.nix b/pkgs/development/python-modules/sphinx_rtd_theme/default.nix
index 6ce714c9a310..fcdb3abbe66d 100644
--- a/pkgs/development/python-modules/sphinx_rtd_theme/default.nix
+++ b/pkgs/development/python-modules/sphinx_rtd_theme/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "sphinx_rtd_theme";
-  version = "0.4.2";
+  version = "0.4.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "02f02a676d6baabb758a20c7a479d58648e0f64f13e07d1b388e9bb2afe86a09";
+    sha256 = "728607e34d60456d736cc7991fd236afb828b21b82f956c5ea75f94c8414040a";
   };
 
   propagatedBuildInputs = [ sphinx ];