diff --git a/overlays/mlat-client.nix b/overlays/mlat-client.nix
index 2f3a70a9..2d91e86a 100644
--- a/overlays/mlat-client.nix
+++ b/overlays/mlat-client.nix
@@ -2,12 +2,12 @@
 
 buildPythonApplication rec {
   pname = "mlat-client";
-  version = "0.3.9";
+  version = "0.4.2";
 
   src = fetchFromGitHub {
     owner = "adsbxchange";
     repo = "mlat-client";
     rev = "v${version}";
-    sha256 = "0zqm9g6sg3mzq8x809x9kicc9mqpkh1ndb0xfapb3hkz5d5dnm6z";
+    hash = "sha256-V//LpYmBXtT8haX1aZ4XldzzyUY2YN7x3lTpQ2csTmw=";
   };
 }