diff --git a/pkgs/development/python-modules/x690/default.nix b/pkgs/development/python-modules/x690/default.nix
index 61ec38319a6b..8edb48cc2f48 100644
--- a/pkgs/development/python-modules/x690/default.nix
+++ b/pkgs/development/python-modules/x690/default.nix
@@ -10,14 +10,14 @@
 
 buildPythonPackage rec {
   pname = "x690";
-  version = "1.0.0";
+  version = "1.0.0post1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "exhuma";
     repo = "x690";
     tag = "v${version}";
-    hash = "sha256-yU4FABlTAFoj87SJXDA+sVCJT3pCbYxpTXp7Ja2ltGE=";
+    hash = "sha256-HNKZq6VfqYAih2SrhGChC2jaQ76dhzKM/Mcr6pVYFE4=";
   };
 
   build-system = [