diff --git a/pkgs/development/python-modules/pipdeptree/default.nix b/pkgs/development/python-modules/pipdeptree/default.nix
index a30535f53217..f02c8c2e5e94 100644
--- a/pkgs/development/python-modules/pipdeptree/default.nix
+++ b/pkgs/development/python-modules/pipdeptree/default.nix
@@ -16,7 +16,7 @@
 
 buildPythonPackage rec {
   pname = "pipdeptree";
-  version = "2.26.0";
+  version = "2.26.1";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -25,7 +25,7 @@ buildPythonPackage rec {
     owner = "tox-dev";
     repo = "pipdeptree";
     tag = version;
-    hash = "sha256-Nq+xXzi5PeDDNTtkTaMTWO4HpxkjSUptE4jwfjBoauY=";
+    hash = "sha256-mgmUIN49zLo5XYWW5Y9XXeZ9RurB1LekF3/vl8EDhxM=";
   };
 
   postPatch = ''