diff --git a/pkgs/by-name/op/open62541/package.nix b/pkgs/by-name/op/open62541/package.nix
index bc5922d80554..c64f9bbd10f6 100644
--- a/pkgs/by-name/op/open62541/package.nix
+++ b/pkgs/by-name/op/open62541/package.nix
@@ -33,13 +33,13 @@ in
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "open62541";
-  version = "1.4.10";
+  version = "1.4.12";
 
   src = fetchFromGitHub {
     owner = "open62541";
     repo = "open62541";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-UUN8zLkXyXRbUOGFD6TYKUlbkZCIEJGw/S7xpUWVPxQ=";
+    hash = "sha256-FhlYowmu3McXuhOplnN/tnfkHAvRJqIuk60ceFYOmR0=";
     fetchSubmodules = true;
   };
 
@@ -150,6 +150,8 @@ stdenv.mkDerivation (finalAttrs: {
       rm -r bin/libopen62541*
     '';
 
+  __darwinAllowLocalNetworking = true;
+
   passthru.updateScript = nix-update-script { };
 
   passthru.tests =