diff --git a/pkgs/development/python-modules/translate-toolkit/default.nix b/pkgs/development/python-modules/translate-toolkit/default.nix
index 9f6bc15ad8ed..c4e7fa8a939a 100644
--- a/pkgs/development/python-modules/translate-toolkit/default.nix
+++ b/pkgs/development/python-modules/translate-toolkit/default.nix
@@ -28,7 +28,7 @@
 
 buildPythonPackage rec {
   pname = "translate-toolkit";
-  version = "3.15.5";
+  version = "3.15.6";
 
   pyproject = true;
 
@@ -36,7 +36,7 @@ buildPythonPackage rec {
     owner = "translate";
     repo = "translate";
     tag = version;
-    hash = "sha256-VrnL9hD7NroXCyTydLIJlpBTGkUuCLKhrQJPWe3glAM=";
+    hash = "sha256-G6DzpOkyD2FiskHwOhOsgRrZCXQJ9ITjp6PVZd3j9f4=";
   };
 
   build-system = [ setuptools-scm ];