diff --git a/pkgs/servers/monitoring/mackerel-agent/default.nix b/pkgs/servers/monitoring/mackerel-agent/default.nix
index a240c1aee990..19a822fc6173 100644
--- a/pkgs/servers/monitoring/mackerel-agent/default.nix
+++ b/pkgs/servers/monitoring/mackerel-agent/default.nix
@@ -2,20 +2,20 @@
 
 buildGoModule rec {
   pname = "mackerel-agent";
-  version = "0.80.0";
+  version = "0.81.0";
 
   src = fetchFromGitHub {
     owner = "mackerelio";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-ETM7OTJEdySej9wrV9sth1JCJAtfBVdsPH8ndOBV118=";
+    sha256 = "sha256-C0/l5dt5HpSgpTw1rlQXWOh4CfCI8D/tKPTGNt67M08=";
   };
 
   nativeBuildInputs = [ makeWrapper ];
   nativeCheckInputs = lib.optionals (!stdenv.isDarwin) [ nettools ];
   buildInputs = lib.optionals (!stdenv.isDarwin) [ iproute2 ];
 
-  vendorHash = "sha256-pCUHDHKNaSoIPB3fS+Jf953YMI5cXcUOLF+YP62iPMo=";
+  vendorHash = "sha256-JIqQXS2iw3opeotpfqC16w7hdu+7XjxhIyVj2M+98ec=";
 
   subPackages = [ "." ];