diff --git a/pkgs/development/python-modules/pgvector/default.nix b/pkgs/development/python-modules/pgvector/default.nix
index cc604bc87997..66351f445a6e 100644
--- a/pkgs/development/python-modules/pgvector/default.nix
+++ b/pkgs/development/python-modules/pgvector/default.nix
@@ -28,14 +28,14 @@
 
 buildPythonPackage rec {
   pname = "pgvector";
-  version = "0.4.1";
+  version = "0.4.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "pgvector";
     repo = "pgvector-python";
     tag = "v${version}";
-    hash = "sha256-QbNzEQctKgxdH1cpMmf2Yg05Q3KOT9tGtK4YSr9GiC4=";
+    hash = "sha256-jzUZK3zQxqajVqGbaQzLPzvK/k3Wck9jX95kkBH2IlY=";
   };
 
   build-system = [ setuptools ];