diff --git a/pkgs/development/python-modules/pyturbojpeg/default.nix b/pkgs/development/python-modules/pyturbojpeg/default.nix
index a357e45a5faf..aecbbbd65055 100644
--- a/pkgs/development/python-modules/pyturbojpeg/default.nix
+++ b/pkgs/development/python-modules/pyturbojpeg/default.nix
@@ -10,13 +10,13 @@
 
 buildPythonPackage rec {
   pname = "pyturbojpeg";
-  version = "1.6.3";
+  version = "1.6.4";
   format = "setuptools";
 
   src = fetchPypi {
     pname = "PyTurboJPEG";
     inherit version;
-    sha256 = "sha256-5g9MQB7vpeuorVGExt0scHtLdrWlkuLOZMT38FhAsi4=";
+    hash = "sha256-kAIFFK7VnwL7o4G512f7kVVDBLz2SnjapzzpNM/KNKA=";
   };
 
   patches = [