diff --git a/pkgs/development/python-modules/vector/default.nix b/pkgs/development/python-modules/vector/default.nix
index cbfe657219e87b8..1d8168467db5fcf 100644
--- a/pkgs/development/python-modules/vector/default.nix
+++ b/pkgs/development/python-modules/vector/default.nix
@@ -15,14 +15,14 @@
 
 buildPythonPackage rec {
   pname = "vector";
-  version = "1.1.1";
+  version = "1.1.1.post1";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-aVdFHlnOUI9hgzVRnFPzDOuItwU9ZfPRZkWf1wjtOLU=";
+    hash = "sha256-elWuVJgW5fyg5S+rjMZtSw5Ls7d1OTPoW0FnZXlANys=";
   };
 
   nativeBuildInputs = [