diff --git a/flake.lock b/flake.lock
index 4be8553..bc59c37 100644
--- a/flake.lock
+++ b/flake.lock
@@ -98,16 +98,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1695360818,
-        "narHash": "sha256-JlkN3R/SSoMTa+CasbxS1gq+GpGxXQlNZRUh9+LIy/0=",
-        "owner": "NixOS",
+        "lastModified": 1695746650,
+        "narHash": "sha256-KwVLbdxFBUnNALz8dIzhEa8NteA8MB07jtRez28R/bE=",
+        "owner": "sumnerevans",
         "repo": "nixpkgs",
-        "rev": "e35dcc04a3853da485a396bdd332217d0ac9054f",
+        "rev": "2831e38454ba6083bdbe2392f9587a4a4606d8ed",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
+        "owner": "sumnerevans",
+        "ref": "matrix-synapse-1.93",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index c31dbf7..928f780 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   description = "Nevarro Infrastructure NixOS deployments";
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:sumnerevans/nixpkgs/matrix-synapse-1.93";
     flake-utils.url = "github:numtide/flake-utils";
     mineshspc = {
       url = "github:ColoradoSchoolOfMines/mineshspc.com";
diff --git a/nixos/colmena.nix b/nixos/colmena.nix
index da6448a..3ccc429 100644
--- a/nixos/colmena.nix
+++ b/nixos/colmena.nix
@@ -15,20 +15,20 @@ in
           # Custom package that tracks with the latest release of Synapse.
           matrix-synapse-unwrapped = super.matrix-synapse-unwrapped.overridePythonAttrs (old: rec {
             pname = "matrix-synapse";
-            version = "1.91.2";
+            version = "1.93.0";
             format = "pyproject";
 
             src = super.fetchFromGitHub {
               owner = "matrix-org";
               repo = "synapse";
               rev = "v${version}";
-              hash = "sha256-U9SyDmO34s9PjLPnT1QYemGeCmKdXRaQvEC8KKcFXOI=";
+              hash = "sha256-fmY5xjpbFwzrX47ijPxOUTI0w9stYVPpSV+HRF4GdlA=";
             };
 
             cargoDeps = super.rustPackages.rustPlatform.fetchCargoTarball {
               inherit src;
               name = "${pname}-${version}";
-              hash = "sha256-q3uoT2O/oTVSg6olZohU8tiWahijyva+1tm4e1GWGj4=";
+              hash = "sha256-9cCEfDV5X65JublgkUP6NVfMIObPawx+nXTmIG9lg5o=";
             };
 
             doCheck = false;
diff --git a/nixos/pkgs/linkedin-messaging.nix b/nixos/pkgs/linkedin-messaging.nix
index 70a47ff..1bdc520 100644
--- a/nixos/pkgs/linkedin-messaging.nix
+++ b/nixos/pkgs/linkedin-messaging.nix
@@ -5,17 +5,17 @@ with python3.pkgs;
 buildPythonPackage rec {
   pname = "linkedin-messaging";
   version = "0.6.0";
-  format = "flit";
+  format = "pyproject";
 
   src = fetchFromGitHub {
-    owner = "sumnerevans";
+    owner = "beeper";
     repo = "linkedin-messaging-api";
     rev = "v${version}";
     sha256 = "sha256-Bn/yxv+RZrBtvpyotWhEY2HafIRTaWxiTexP4AVTJ0A=";
   };
 
   nativeBuildInputs = [
-    python3.pkgs.flit
+    python3.pkgs.flit-core
   ];
 
   propagatedBuildInputs = [