diff --git a/pkgs/development/python-modules/dendropy/default.nix b/pkgs/development/python-modules/dendropy/default.nix
index f2632e907107..3e9646a4aeb7 100644
--- a/pkgs/development/python-modules/dendropy/default.nix
+++ b/pkgs/development/python-modules/dendropy/default.nix
@@ -16,7 +16,7 @@ let
 in
 buildPythonPackage rec {
   pname = "dendropy";
-  version = "5.0.2";
+  version = "5.0.6";
 
   pyproject = true;
   build-system = [ setuptools ];
@@ -25,7 +25,7 @@ buildPythonPackage rec {
     owner = "jeetsukumaran";
     repo = "dendropy";
     tag = "v${version}";
-    hash = "sha256-OiFei/6226FDtL4w1XrXL2OVn3/hfQwnIhTzM4OneKc=";
+    hash = "sha256-pZ6vVN9vGUpdLvvVZLYUj3yWgn+9qd7D0wq5NxM8UiY=";
   };
 
   postPatch = ''