diff --git a/pkgs/development/python-modules/pynndescent/default.nix b/pkgs/development/python-modules/pynndescent/default.nix
index 4173987a7f6a..a447f5e94e79 100644
--- a/pkgs/development/python-modules/pynndescent/default.nix
+++ b/pkgs/development/python-modules/pynndescent/default.nix
@@ -11,12 +11,12 @@
 
 buildPythonPackage rec {
   pname = "pynndescent";
-  version = "0.5.5";
+  version = "0.5.6";
   format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "7a7df8412b19cfb3596060faf5a8c5d0bf5b3bd504f8efd900fc4e3918c6f882";
+    sha256 = "sha256-YfsxiFuqxGnWeTPix8k1tu3rsG7kmOLw+d/JfFnTclw=";
   };
 
   propagatedBuildInputs = [