diff --git a/pkgs/development/python-modules/ogmios/default.nix b/pkgs/development/python-modules/ogmios/default.nix
index 2a90cbd2807e..fb16b93c8ff1 100644
--- a/pkgs/development/python-modules/ogmios/default.nix
+++ b/pkgs/development/python-modules/ogmios/default.nix
@@ -15,13 +15,13 @@
 
 buildPythonPackage rec {
   pname = "ogmios";
-  version = "1.4.2";
+  version = "1.4.3";
   pyproject = true;
 
   src = fetchPypi {
     pname = "ogmios";
     inherit version;
-    hash = "sha256-L+BBuWhcQhnE9f+b860401WKTUcFxf7Ehji1MHCNqjo=";
+    hash = "sha256-+edW34O+OF+JyCoZSjxRwKS6JeXfaZ38+ykUpXwBJ1Q=";
   };
 
   build-system = [