diff --git a/pkgs/servers/gemini/agate/default.nix b/pkgs/servers/gemini/agate/default.nix
index 32fcb856d26..ae198707ec5 100644
--- a/pkgs/servers/gemini/agate/default.nix
+++ b/pkgs/servers/gemini/agate/default.nix
@@ -1,17 +1,25 @@
-{ lib, stdenv, nixosTests, fetchFromGitHub, rustPlatform, libiconv, Security }:
+{ lib, stdenv, nixosTests, fetchFromGitHub, fetchpatch, rustPlatform, libiconv, Security }:
 
 rustPlatform.buildRustPackage rec {
   pname = "agate";
-  version = "3.2.2";
+  version = "3.2.3";
 
   src = fetchFromGitHub {
     owner = "mbrubeck";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-o4tjEIgDTj2EUbfaKCHZfvEKCwxNpsabU437kU+Vpnk=";
+    sha256 = "sha256-nkWk/0TIAHcYQjxbg0HnT+4S4Cinl22WfqHb9U6u5eI=";
   };
+  cargoSha256 = "sha256-aF86QpizJ+lMNmN9DQKA9o1QZWZObyQ3v3+HmT/s02g=";
 
-  cargoSha256 = "sha256-rE0I13dKbGgJmh6vF/cWvIZfqtKzzgn7pTiB3HJ7cgY=";
+  patches = [
+    # https://github.com/mbrubeck/agate/pull/143
+    (fetchpatch {
+      name = "fix-port-collision.patch";
+      url = "https://github.com/mbrubeck/agate/commit/2f5d7878ec9d0dd51762c4c7680fc9f825d8ecd5.patch";
+      sha256 = "sha256-NEFmfb0y97O2W96YggD+MgcN7tlFEi9T4FNzLCND77s=";
+    })
+  ];
 
   buildInputs = lib.optionals stdenv.isDarwin [ libiconv Security ];