diff --git a/nix/sources.json b/nix/sources.json
index c7b956b..05bbdf3 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -23,19 +23,19 @@
         "homepage": "https://mattermost.com",
         "owner": "mattermost",
         "repo": "mattermost-server",
-        "rev": "475dc344d8744d58b37e82c82be2f7285327637f",
-        "sha256": "1dfzkd9pac566dsw7kzasaj8y0pyqlzirpgrvkdcc5cvj1kb88sz",
+        "rev": "585f34fa8c2ea3f3e882db924a29d8dc3924bc5f",
+        "sha256": "06s1i3r2ivxvpnf613w6jq6wqgsx9prw1h5qmvbphh99slmcby72",
         "type": "tarball",
-        "url": "https://github.com/mattermost/mattermost-server/archive/475dc344d8744d58b37e82c82be2f7285327637f.tar.gz",
+        "url": "https://github.com/mattermost/mattermost-server/archive/585f34fa8c2ea3f3e882db924a29d8dc3924bc5f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz",
-        "version": "5.34.2"
+        "version": "5.34.3"
     },
     "mattermost-webapp": {
-        "sha256": "1a1z3p166bs7ygnnbhm8b556wxmljnk2sj4q527jpr437f02fl6z",
+        "sha256": "0c1q4s8w7q26xb387k1660fa6prb4n1b06csx90bb206y98ax6hc",
         "type": "tarball",
-        "url": "https://releases.mattermost.com/5.34.2/mattermost-5.34.2-linux-amd64.tar.gz",
+        "url": "https://releases.mattermost.com/5.34.3/mattermost-5.34.3-linux-amd64.tar.gz",
         "url_template": "https://releases.mattermost.com/<version>/mattermost-<version>-linux-amd64.tar.gz",
-        "version": "5.34.2"
+        "version": "5.34.3"
     },
     "mumble-website": {
         "branch": "master",
@@ -49,10 +49,10 @@
         "homepage": "https://github.com/nmattia/niv",
         "owner": "nmattia",
         "repo": "niv",
-        "rev": "1819632b5823e0527da28ad82fecd6be5136c1e9",
-        "sha256": "08jz17756qchq0zrqmapcm33nr4ms9f630mycc06i6zkfwl5yh5i",
+        "rev": "527494090f7075ed5e3aa15ef7093846e5e25d52",
+        "sha256": "1hahf0i0iix1iyzaaq5a7rbgyfm3xjcfl69lm1b5mas1p8vdimih",
         "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/1819632b5823e0527da28ad82fecd6be5136c1e9.tar.gz",
+        "url": "https://github.com/nmattia/niv/archive/527494090f7075ed5e3aa15ef7093846e5e25d52.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nix-hexchen": {
@@ -76,10 +76,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "47e580e291ff40bbde191e9fed35128727963b0c",
-        "sha256": "1fnz42w2p6avnz76p8n0dr2lvdgv1v1kipysih61mdakr4lc2fs8",
+        "rev": "85ed11208f8c7c981071cc6e33a5fc60c396c38f",
+        "sha256": "0kq0rg6yyfr2pdyn0dmsmls0mdf3v5x0msjisj9v9pmb6k6jr39j",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/47e580e291ff40bbde191e9fed35128727963b0c.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/85ed11208f8c7c981071cc6e33a5fc60c396c38f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-unstable": {
@@ -88,16 +88,16 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "1c2986bbb806c57f9470bf3231d8da7250ab9091",
-        "sha256": "0y1275nzlmsys5rk7ivzbdc8cpjs9cbk0wz6yh3i2c57b8nbd3ym",
+        "rev": "fbfb79400a08bf754e32b4d4fc3f7d8f8055cf94",
+        "sha256": "0pgyx1l1gj33g5i9kwjar7dc3sal2g14mhfljcajj8bqzzrbc3za",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/1c2986bbb806c57f9470bf3231d8da7250ab9091.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/fbfb79400a08bf754e32b4d4fc3f7d8f8055cf94.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "pbb-nixfiles": {
         "branch": "main",
         "repo": "https://git.petabyte.dev/petabyteboy/nixfiles.git",
-        "rev": "d1694a0214aa6ba1dfd51165167d5124847a83da",
+        "rev": "0df816ae1be59e875fa169c1da01a484ccbcc48b",
         "type": "git"
     },
     "workadventure": {