diff --git a/pkgs/matrix/default.nix b/pkgs/matrix/default.nix
new file mode 100644
index 0000000..b58a98c
--- /dev/null
+++ b/pkgs/matrix/default.nix
@@ -0,0 +1,54 @@
+self: super:
+{
+  python38Packages = super.python3Packages // {
+    twisted = with super.python3Packages;
+      twisted.overrideAttrs (old: rec {
+        version = "21.2.0";
+        src = fetchPypi {
+          inherit version;
+          extension = "tar.gz";
+          pname = "Twisted";
+          sha256 = "04jsr67swzj8vn8z64fzbha7vpkm1jz9ns26566vjsfg8n4llm3p";
+        };
+      });
+  };
+
+  matrix-synapse = super.matrix-synapse.overrideAttrs (old: {
+    propagatedBuildInputs = with self.python3Packages; [
+      setuptools
+      bcrypt
+      bleach
+      canonicaljson
+      daemonize
+      frozendict
+      jinja2
+      jsonschema
+      lxml
+      msgpack
+      netaddr
+      phonenumbers
+      pillow
+      prometheus_client
+      psutil
+      psycopg2
+      pyasn1
+      pymacaroons
+      pynacl
+      pyopenssl
+      pysaml2
+      pyyaml
+      requests
+      signedjson
+      sortedcontainers
+      treq
+      twisted
+      unpaddedbase64
+      typing-extensions
+      authlib
+      pyjwt
+      systemd
+      hiredis
+    ];
+    python = self.python3;
+  });
+}
diff --git a/services/matrix-synapse.nix b/services/matrix-synapse.nix
index 7e88452..2084821 100644
--- a/services/matrix-synapse.nix
+++ b/services/matrix-synapse.nix
@@ -3,6 +3,9 @@
 {
   networking.firewall.allowedTCPPorts = [ 80 443 ];
 
+  nixpkgs.overlays = [ (import ./../../../pkgs/matrix) ];
+
+
   services.postgresql.enable = true;
   services.postgresql.initialScript = pkgs.writeText "synapse-init.sql" ''
     CREATE ROLE "matrix-synapse" WITH LOGIN PASSWORD 'synapse';