diff --git a/pkgs/by-name/me/mev-boost/package.nix b/pkgs/by-name/me/mev-boost/package.nix
index f99e1b0ce3fb..f36c87d7f615 100644
--- a/pkgs/by-name/me/mev-boost/package.nix
+++ b/pkgs/by-name/me/mev-boost/package.nix
@@ -6,15 +6,15 @@
 
 buildGoModule rec {
   pname = "mev-boost";
-  version = "1.8";
+  version = "1.9";
   src = fetchFromGitHub {
     owner = "flashbots";
     repo = "mev-boost";
     rev = "v${version}";
-    hash = "sha256-EFPVBSSIef3cTrYp3X1xCEOtYcGpuW/GZXHXX+0wGd8=";
+    hash = "sha256-VBvbiB7M6X+bQ5xEwmJo5dptiR7PIBiFDqkg1fyU8ro=";
   };
 
-  vendorHash = "sha256-xkncfaqNfgPt5LEQ3JyYXHHq6slOUchomzqwkZCgCOM=";
+  vendorHash = "sha256-OyRyMsINy4I04E2QvToOEY7UKh2s6NUeJJO0gJI5uS0=";
 
   meta = with lib; {
     description = "Ethereum block-building middleware";