diff --git a/pkgs/by-name/mc/mcp-grafana/package.nix b/pkgs/by-name/mc/mcp-grafana/package.nix
index 8383509f898d..d064f5c0e7ef 100644
--- a/pkgs/by-name/mc/mcp-grafana/package.nix
+++ b/pkgs/by-name/mc/mcp-grafana/package.nix
@@ -6,16 +6,16 @@
 
 buildGoModule (finalAttrs: {
   pname = "mcp-grafana";
-  version = "0.6.3";
+  version = "0.6.4";
 
   src = fetchFromGitHub {
     owner = "grafana";
     repo = "mcp-grafana";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-6Sfj0v0mYg7j0C0H3ntX8+ydRslOW9b3xzFo3Ti3a5g=";
+    hash = "sha256-bku8vbNjIggaVzhTXZYBgT7TcI9tAUUUrCjl+cSN9OU=";
   };
 
-  vendorHash = "sha256-zevHaGR0Lipyn9KzdEQOHC0yqMmSl0/Wp02GTI3MmSw=";
+  vendorHash = "sha256-42UHI5Z5bgnW40DsRPzoKQdZQ+k785K60gWMp5ehLfU=";
 
   ldflags = [
     "-s"