diff --git a/pkgs/tools/admin/lego/default.nix b/pkgs/tools/admin/lego/default.nix
index 5d565b218879..609c085edbd3 100644
--- a/pkgs/tools/admin/lego/default.nix
+++ b/pkgs/tools/admin/lego/default.nix
@@ -2,16 +2,16 @@
 
 buildGoModule rec {
   pname = "lego";
-  version = "4.8.0";
+  version = "4.9.0";
 
   src = fetchFromGitHub {
     owner = "go-acme";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-OYzk5SQQW3360hc/52bYoW3JJDGk/NRUF8IzIjtWlpc=";
+    sha256 = "sha256-lMPyquQ+CeMe/V+hG4h61+GiuCXqjVAcTV9Fo3DNb6E=";
   };
 
-  vendorSha256 = "sha256-FtlVYeW5ac/qOn1WFqbhix8xw/ARol+k3uiyH/dBQbk=";
+  vendorSha256 = "sha256-gHwyXzmws99tPRJKR/boc0Hf+b5h9ZkzH2aiN8u6Z0I=";
 
   doCheck = false;