diff --git a/pkgs/servers/tailscale/default.nix b/pkgs/servers/tailscale/default.nix
index 18803636a0db..08d1a8ab5e51 100644
--- a/pkgs/servers/tailscale/default.nix
+++ b/pkgs/servers/tailscale/default.nix
@@ -2,21 +2,21 @@
 
 buildGoModule rec {
   pname = "tailscale";
-  version = "1.2.10";
-  tagHash = "4b3581abed6c2db79b61eb1b53e29645df12a833"; # from `git rev-parse v1.2.10`
+  version = "1.4.0";
+  tagHash = "18853ae9019c29c76fae9ee484120e33ff475499"; # from `git rev-parse v1.4.0`
 
   src = fetchFromGitHub {
     owner = "tailscale";
     repo = "tailscale";
     rev = "v${version}";
-    sha256 = "09m4xhnjpnkic9jy5dwnmpl40r92xa8fcx4xhpadv6hjpx9k4xx5";
+    sha256 = "0j5bymqcvsi8s3ybgpavn1b90qq3szrh7g8rirr7b24p63zpi359";
   };
 
   nativeBuildInputs = [ makeWrapper ];
 
   CGO_ENABLED = 0;
 
-  vendorSha256 = "01g3jkgl3jrygd154gmjm3dq13nkppd993iym7assdz8mr3rq31s";
+  vendorSha256 = "16aa7jc2h59hnnh0mfmnd0k198dijm9j4c44j80wpzlhf4x27yjs";
 
   doCheck = false;