diff --git a/nix/sources.json b/nix/sources.json
index f64db52..923c68e 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -12,15 +12,15 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
-        "branch": "nixos-21.05",
+        "branch": "nixos-22.05",
         "description": "Nix Packages collection",
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de",
-        "sha256": "0f06zcc8mh934fya0hwzklmga238yxiyfp183y48vyzkdsg7xgn0",
+        "rev": "62de360d75419386b69ea4af4a8ce104949a8242",
+        "sha256": "1iincgcgswg29znpn3whpa04c1waj6ihn38db5v330laa0hdjhxp",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/62de360d75419386b69ea4af4a8ce104949a8242.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }
diff --git a/release.nix b/release.nix
index 1e78279..f187657 100644
--- a/release.nix
+++ b/release.nix
@@ -1,5 +1,5 @@
 let sources = import ./nix/sources.nix;
-in { compiler ? "ghc8104", pkgs ? import sources.nixpkgs { } }:
+in { compiler ? "ghc902", pkgs ? import sources.nixpkgs { } }:
 
 let
   inherit (pkgs.lib.trivial) flip pipe;
diff --git a/voc-web.cabal b/voc-web.cabal
index 4d0ef79..234b7b6 100644
--- a/voc-web.cabal
+++ b/voc-web.cabal
@@ -6,7 +6,7 @@ cabal-version:      >= 1.10
 executable site
   main-is:          site.hs
   build-depends:    base == 4.*
-                  , hakyll == 4.14.*
+                  , hakyll == 4.15.*
                   , containers == 0.6.*
                   , filepath == 1.4.*
                   , pandoc