diff --git a/pkgs/development/python-modules/psautohint/default.nix b/pkgs/development/python-modules/psautohint/default.nix
index ff312cbff891..3004d5f7a9b9 100644
--- a/pkgs/development/python-modules/psautohint/default.nix
+++ b/pkgs/development/python-modules/psautohint/default.nix
@@ -7,7 +7,7 @@
 
 buildPythonPackage rec {
   pname = "psautohint";
-  version = "2.3.0";
+  version = "2.3.1";
 
   disabled = pythonOlder "3.6";
 
@@ -15,7 +15,7 @@ buildPythonPackage rec {
     owner = "adobe-type-tools";
     repo = pname;
     rev = "v${version}";
-    sha256 = "1y7mqc2myn1gfzg4h018f8xza0q535shnqg6snnaqynz20i8jcfh";
+    sha256 = "1knh428af0lvzijvd72i30jcvx9n6ga0hai69kxg8386jdpmmvkg";
     fetchSubmodules = true; # data dir for tests
   };