diff --git a/pkgs/development/python-modules/affinegap/default.nix b/pkgs/development/python-modules/affinegap/default.nix
index 671e4c2073b88..994e32f831c21 100644
--- a/pkgs/development/python-modules/affinegap/default.nix
+++ b/pkgs/development/python-modules/affinegap/default.nix
@@ -13,14 +13,14 @@
 
 buildPythonPackage rec {
   pname = "affinegap";
-  version = "2";
+  version = "1.12";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "dedupeio";
     repo = "affinegap";
-    tag = "pypideploy${version}";
-    hash = "sha256-TuydLF3YfeVIP2y2uDQH+oZ9Y2b325ZFEM0Fiu0Xhus=";
+    tag = "v${version}";
+    hash = "sha256-9eX41eoME5Vdtq+c04eQbMYnViy6QKOhKkafrkeMylI=";
   };
 
   build-system = [
@@ -41,6 +41,8 @@ buildPythonPackage rec {
     "affinegap"
   ];
 
+  passthru.skipBulkUpdate = true;
+
   meta = {
     description = "Cython implementation of the affine gap string distance";
     homepage = "https://github.com/dedupeio/affinegap";