diff --git a/pkgs/by-name/gr/grpc-health-probe/package.nix b/pkgs/by-name/gr/grpc-health-probe/package.nix
index c783f26f8426..f6cf3641a3df 100644
--- a/pkgs/by-name/gr/grpc-health-probe/package.nix
+++ b/pkgs/by-name/gr/grpc-health-probe/package.nix
@@ -7,13 +7,13 @@
 
 buildGoModule (finalAttrs: {
   pname = "grpc-health-probe";
-  version = "0.4.55";
+  version = "0.4.56";
 
   src = fetchFromGitHub {
     owner = "grpc-ecosystem";
     repo = "grpc-health-probe";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-NRAKx8tWf+kXrwSdvTQ1ViYJsph2zOef/s2Gg2alhV4=";
+    hash = "sha256-cBXXM28x5lZJlnglfFMk6ZAymMS54vaX7q0fIcgEsts=";
   };
 
   tags = [