diff --git a/modules/applications/misc.nix b/modules/applications/misc.nix
index 98cfc14..6185f18 100644
--- a/modules/applications/misc.nix
+++ b/modules/applications/misc.nix
@@ -10,6 +10,7 @@
     youtube-dl # download from youtube
     neofetch # display system information
     xclip # copy paste stuff
+    feh # image viewer
 
     # editors
     vscodium
diff --git a/nix/sources.json b/nix/sources.json
index 7d65577..88bbdac 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "445eb76b526a0aca365018c10e73c22cf3b1ae42",
-        "sha256": "1jw7g8kd4g5y771z0kxckznlja9gi4msnivhd2fysn510f1h665n",
+        "rev": "15f319a6b8149e4887d6c4a52f2c341231cbf528",
+        "sha256": "1hb3mp064xjrniww4q0gfvlxwky183wnr1kzmzd6kzy4c2i01gdl",
         "type": "tarball",
-        "url": "https://github.com/nix-community/NUR/archive/445eb76b526a0aca365018c10e73c22cf3b1ae42.tar.gz",
+        "url": "https://github.com/nix-community/NUR/archive/15f319a6b8149e4887d6c4a52f2c341231cbf528.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "agnoster": {
@@ -89,10 +89,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs-channels",
-        "rev": "e985ffea2d640bb6fe7d5ef7aa968b2b7d107f47",
-        "sha256": "01nmwqixbkvnp9y0rkblwik6g0wk95pr9j3wrh1ar72cif47n06l",
+        "rev": "e7752db2fb6c5e05f1de2b275535dbde07d30090",
+        "sha256": "1lx2wdagigq5c7qp1fcy25ccpfvz5cl5x0b9rhnz1x409vn7icx1",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs-channels/archive/e985ffea2d640bb6fe7d5ef7aa968b2b7d107f47.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs-channels/archive/e7752db2fb6c5e05f1de2b275535dbde07d30090.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-unstable": {
@@ -101,10 +101,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "nixos",
         "repo": "nixpkgs-channels",
-        "rev": "46f975f81e0f71ba0d2b2bb8fe4006a9aa4c6c5c",
-        "sha256": "11f8jli3lhc4hzfy7fjwpks3f3p2vpnkz8lrkcsr4aglrd0n3mjv",
+        "rev": "135073a87b7e2c631739f4ffa016e1859b1a425e",
+        "sha256": "0s5kgyi7764r4zm51zy4isyc4zgn4fajwqwnrgm7s1xbs6zickv5",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs-channels/archive/46f975f81e0f71ba0d2b2bb8fe4006a9aa4c6c5c.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs-channels/archive/135073a87b7e2c631739f4ffa016e1859b1a425e.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "snack": {