diff --git a/nix/sources.json b/nix/sources.json
index ab055f1..855658f 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -23,10 +23,10 @@
         "homepage": "https://mattermost.com",
         "owner": "mattermost",
         "repo": "mattermost-server",
-        "rev": "53f27e28604e0dce90c8b549ce243bd76a0fa856",
-        "sha256": "15q5j29v7nk570qdnqy73adlvjgr6zm5rk79r5pf4hgf4d37skp0",
+        "rev": "475dc344d8744d58b37e82c82be2f7285327637f",
+        "sha256": "1dfzkd9pac566dsw7kzasaj8y0pyqlzirpgrvkdcc5cvj1kb88sz",
         "type": "tarball",
-        "url": "https://github.com/mattermost/mattermost-server/archive/53f27e28604e0dce90c8b549ce243bd76a0fa856.tar.gz",
+        "url": "https://github.com/mattermost/mattermost-server/archive/475dc344d8744d58b37e82c82be2f7285327637f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz",
         "version": "5.34.2"
     },
@@ -58,7 +58,7 @@
     "nix-hexchen": {
         "branch": "main",
         "repo": "https://gitlab.com/hexchen/nixfiles.git",
-        "rev": "1dee1474f147ce8d04ec4b200df1c6255ae59bdc",
+        "rev": "83b511d9a3754ded187891c711b3dbbef82887d3",
         "type": "git"
     },
     "nixos-mailserver": {
@@ -76,10 +76,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "327368f98c6a927a84aed3c2f2fd1a7f6983e855",
-        "sha256": "153qm1chir2kzd98dxg35afn1ybzlwfpx9n2mps08ssmaj1zxzvi",
+        "rev": "76ed24ceab9ec8b520f977a2803181f0c1d86b4d",
+        "sha256": "0dnpkkkv1cly8vywsfizfk3iwl8dnffqh0k6vkq616iw6biha725",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/327368f98c6a927a84aed3c2f2fd1a7f6983e855.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/76ed24ceab9ec8b520f977a2803181f0c1d86b4d.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-unstable": {
@@ -88,30 +88,30 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "ca26ea50d66737922d0edfaaf07449576ece7f8c",
-        "sha256": "186fnj3dzv07bh5mh5wcw2lzcs9nidpvg48814xz2z78ifv09w2f",
+        "rev": "ea7d4aa9b8225abd6147339f0d56675d6f1f0fd1",
+        "sha256": "11bwgyglag40w2y50nq2gg4697ymdjprkgip75kb3hjrvvwpma53",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/ca26ea50d66737922d0edfaaf07449576ece7f8c.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/ea7d4aa9b8225abd6147339f0d56675d6f1f0fd1.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "papermc": {
         "rev": "1.16.5",
-        "sha256": "0vmjcq87lzs8d49s3s0rbmzjk8d8ikvkk77bzhn59mgfkyrh98bc",
+        "sha256": "0w8vwl11adis6c69j8hpdq8vvmwxv5vj4h16cffhlp510brb0z8i",
         "type": "file",
-        "url": "https://papermc.io/api/v2/projects/paper/versions/1.16.5/builds/669/downloads/paper-1.16.5-669.jar",
+        "url": "https://papermc.io/api/v2/projects/paper/versions/1.16.5/builds/734/downloads/paper-1.16.5-734.jar",
         "url_template": "https://papermc.io/api/v2/projects/paper/versions/<rev>/builds/<version>/downloads/paper-<rev>-<version>.jar",
-        "version": "669"
+        "version": "734"
     },
     "pbb-nixfiles": {
         "branch": "main",
         "repo": "https://git.petabyte.dev/petabyteboy/nixfiles.git",
-        "rev": "66f890a5f66db574fad2967dab2ee6755bed056f",
+        "rev": "da6d09c5750f838a8598ccd1a580a54e95428695",
         "type": "git"
     },
     "workadventure": {
         "branch": "master",
         "repo": "https://stuebinm.eu/git/workadventure-nix",
-        "rev": "cbe9196fba75be98569d7504e7c1d091bcbf053e",
+        "rev": "cea6e1ce0b6ffab61fe304dceb049dce268c9b65",
         "type": "git"
     }
 }