diff --git a/flake.lock b/flake.lock
index 452a6638..bf3732ca 100644
--- a/flake.lock
+++ b/flake.lock
@@ -161,11 +161,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1702195709,
-        "narHash": "sha256-+zRjWkm5rKqQ57PuLZ3JF3xi3vPMiOJzItb1m/43Cq4=",
+        "lastModified": 1702814678,
+        "narHash": "sha256-zDtO0jV2QLoddUJinLlTQrQqCUW3dPiIWOSYgg98T7E=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "6761b8188b860f374b457eddfdb05c82eef9752f",
+        "rev": "1488651d02c1a7a15e284210f0d380a62d8d8cef",
         "type": "github"
       },
       "original": {
@@ -236,11 +236,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1702346276,
-        "narHash": "sha256-eAQgwIWApFQ40ipeOjVSoK4TEHVd6nbSd9fApiHIw5A=",
+        "lastModified": 1702780907,
+        "narHash": "sha256-blbrBBXjjZt6OKTcYX1jpe9SRof2P9ZYWPzq22tzXAA=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "cf28ee258fd5f9a52de6b9865cdb93a1f96d09b7",
+        "rev": "1e2e384c5b7c50dbf8e9c441a9e58d85f408b01f",
         "type": "github"
       },
       "original": {
@@ -284,22 +284,6 @@
         "type": "github"
       }
     },
-    "release-2311": {
-      "locked": {
-        "lastModified": 1702509556,
-        "narHash": "sha256-trm+c/erCSRe+Mi2fAaI975+jrU8uhmUznx8py6N9po=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "c15f414581b4eb4113eed52ed303a1e62771fb6f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "release-23.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "agenix": "agenix",
@@ -312,7 +296,6 @@
         "nixos-flake": "nixos-flake",
         "nixpkgs": "nixpkgs",
         "nixpkgs-2205": "nixpkgs-2205",
-        "release-2311": "release-2311",
         "triton-vmtools": "triton-vmtools",
         "unstable": "unstable"
       }
diff --git a/flake.nix b/flake.nix
index 13cb0716..7cb4db75 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,7 +4,6 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
     unstable.url = "github:nixos/nixpkgs/nixos-unstable";
 
-    release-2311.url = "github:nixos/nixpkgs/release-23.11";
     nixpkgs-2205.url = "github:nixos/nixpkgs/nixos-22.05";
 
     nix-darwin.url = "github:lnl7/nix-darwin/master";
diff --git a/overlays/default.nix b/overlays/default.nix
index d285cb11..9bbb22d0 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -9,15 +9,13 @@
         nixpkgs.overlays = [
           (final: prev:
           let
-            release-2311 = import inputs.release-2311 {
+            unstable = import inputs.unstable {
               system = prev.system;
             };
           in
           {
             element-themes = prev.callPackage ./pkgs/element-themes { inherit (inputs) element-themes; };
-            forgejo = release-2311.forgejo;
           })
-          (import ./keycloak.nix)
         ];
       });
     };
diff --git a/overlays/keycloak.nix b/overlays/keycloak.nix
deleted file mode 100644
index f45772ef..00000000
--- a/overlays/keycloak.nix
+++ /dev/null
@@ -1,9 +0,0 @@
-final: prev: {
-  keycloak = prev.keycloak.overrideAttrs (oldAttrs: rec {
-    version = "999.0.0-SNAPSHOT";
-    src = prev.fetchzip {
-      url = "https://github.com/keycloak/keycloak/releases/download/nightly/keycloak-${version}.zip";
-      hash = "sha256-2rOhBmPXQy6HK3CtG/7E2EUK5zEWrJtSgBg6AMw2q3E=";
-    };
-  });
-}