diff --git a/pkgs/development/python-modules/dulwich/default.nix b/pkgs/development/python-modules/dulwich/default.nix
index ad0a853af226..a255d3c4f9b9 100644
--- a/pkgs/development/python-modules/dulwich/default.nix
+++ b/pkgs/development/python-modules/dulwich/default.nix
@@ -16,7 +16,7 @@
 }:
 
 buildPythonPackage rec {
-  version = "0.20.32";
+  version = "0.20.35";
   pname = "dulwich";
   format = "setuptools";
 
@@ -24,7 +24,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-3FSYsHK9wSwe/+9LYgLNKkVCuxxtu03c/IxtU+CLSIw=";
+    hash = "sha256-lT9jAanfigkfqI1V7tOUqIv5mIzei+NBd1NUkQkYwZY=";
   };
 
   LC_ALL = "en_US.UTF-8";
diff --git a/pkgs/development/python-modules/scmrepo/default.nix b/pkgs/development/python-modules/scmrepo/default.nix
index f4a024a46e99..90d435fc6c04 100644
--- a/pkgs/development/python-modules/scmrepo/default.nix
+++ b/pkgs/development/python-modules/scmrepo/default.nix
@@ -14,7 +14,7 @@
 
 buildPythonPackage rec {
   pname = "scmrepo";
-  version = "0.0.7";
+  version = "0.0.13";
   format = "pyproject";
 
   disabled = pythonOlder "3.7";
@@ -23,7 +23,7 @@ buildPythonPackage rec {
     owner = "iterative";
     repo = pname;
     rev = version;
-    hash = "sha256-tZsogqcfAqpSo9yOz4z0mgY9SVU1epPmcBuyLJsHLfY=";
+    hash = "sha256-VWdewy4sfnM5zwDmeL8PdNZINN07rBosg4+GOWkkhVE=";
   };
 
   propagatedBuildInputs = [