diff --git a/pkgs/development/python-modules/vivisect/default.nix b/pkgs/development/python-modules/vivisect/default.nix
index e99a473b48a6..17fd9d3edd9e 100644
--- a/pkgs/development/python-modules/vivisect/default.nix
+++ b/pkgs/development/python-modules/vivisect/default.nix
@@ -16,14 +16,14 @@
 
 buildPythonPackage rec {
   pname = "vivisect";
-  version = "1.1.1";
+  version = "1.2.1";
   format = "setuptools";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-URRBEZelw4s43zqtb/GrLxIksvrqHbqQWntT9jVonhU=";
+    hash = "sha256-zBWrVBub48rYBg7k9CDmgCWPpPz3R38/mtUCM1P3Mpk=";
   };
 
   pythonRelaxDeps = [