diff --git a/nixos/tests/matrix-appservice-irc.nix b/nixos/tests/matrix-appservice-irc.nix
index e1da410af0607..7f332bda9b1de 100644
--- a/nixos/tests/matrix-appservice-irc.nix
+++ b/nixos/tests/matrix-appservice-irc.nix
@@ -19,6 +19,11 @@ import ./make-test-python.nix ({ pkgs, ... }:
 
             enable_registration = true;
 
+            extraConfig = ''
+              # don't use this in production, always use some form of verification
+              enable_registration_without_verification: true
+            '';
+
             listeners = [
               # The default but tls=false
               {
diff --git a/pkgs/servers/matrix-synapse/matrix-appservice-irc/node-packages.nix b/pkgs/servers/matrix-synapse/matrix-appservice-irc/node-packages.nix
index f2d2b6fc94c18..3a8d196a1857e 100644
--- a/pkgs/servers/matrix-synapse/matrix-appservice-irc/node-packages.nix
+++ b/pkgs/servers/matrix-synapse/matrix-appservice-irc/node-packages.nix
@@ -3112,10 +3112,10 @@ let
     "matrix-org-irc-1.2.0" = {
       name = "matrix-org-irc";
       packageName = "matrix-org-irc";
-      version = "1.2.0";
+      version = "1.2.1";
       src = fetchurl {
-        url = "https://registry.npmjs.org/matrix-org-irc/-/matrix-org-irc-1.2.0.tgz";
-        sha512 = "RnfeR9FimJJD/iOWw0GiV7NIPRmBJobvFasUgjVmGre9A4qJ9klHIDOlQ5vXIoPPMjzG8XXuAf4WHgMCNBfZkQ==";
+        url = "https://registry.npmjs.org/matrix-org-irc/-/matrix-org-irc-1.2.1.tgz";
+        sha256 = "sha256-H+MDx3PftBtglgHThT7UJ5ePf6QXPDWCygydEUbMj7E=";
       };
     };
     "media-typer-0.3.0" = {