diff --git a/pkgs/development/python-modules/dulwich/default.nix b/pkgs/development/python-modules/dulwich/default.nix
index e553dbb15dc7..cb403d4bf532 100644
--- a/pkgs/development/python-modules/dulwich/default.nix
+++ b/pkgs/development/python-modules/dulwich/default.nix
@@ -25,19 +25,19 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "dulwich";
-  version = "1.2.6";
+  version = "1.2.10";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jelmer";
     repo = "dulwich";
     tag = "dulwich-${finalAttrs.version}";
-    hash = "sha256-nj20g5OmlcqWDaKv3NoKWZS5/e4HOMCf7DHeS7xDzjQ=";
+    hash = "sha256-ogYR4xK4sYbh7zOozpiZ+bubA6/kDx1iFkbIAjYLkIs=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
     inherit (finalAttrs) pname version src;
-    hash = "sha256-wifh/beg3VVQpAXg/P/tq6qiUwCqXxhWPoRvX2HcFOc=";
+    hash = "sha256-Shu80kj4rir3JvrgXmO82/Z6ZROaACl43zQBzjlDFYc=";
   };
 
   nativeBuildInputs = [