diff --git a/default.nix b/default.nix
index 66a7daff..79a7540d 100644
--- a/default.nix
+++ b/default.nix
@@ -1,6 +1,6 @@
 { sources ? import ./nix/sources.nix
 , haskellNix ? import sources.haskellNix { inherit system; }
-, pkgs ? import haskellNix.sources.nixpkgs-2105 (haskellNix.nixpkgsArgs // { inherit system; })
+, pkgs ? import haskellNix.sources.nixpkgs-2311 (haskellNix.nixpkgsArgs // { inherit system; })
 , system ? builtins.currentSystem
 , nix-filter ? import sources.nix-filter
 }:
diff --git a/nix/sources.json b/nix/sources.json
index d17905c8..fc3bb929 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "https://input-output-hk.github.io/haskell.nix",
         "owner": "input-output-hk",
         "repo": "haskell.nix",
-        "rev": "50c6984263f14c110551a74d36020d0f39160019",
-        "sha256": "1nbv78127dq01vyhgaw7l6hnz2qdsv115vv2gy4vvayh0y39km91",
+        "rev": "c1382b31f1ba8440acf409babf78f3139f415318",
+        "sha256": "1bf2d0wq7l1v2gbds4is9diqm9821dgc9pgqs9vnx8d1zw4mq10f",
         "type": "tarball",
-        "url": "https://github.com/input-output-hk/haskell.nix/archive/50c6984263f14c110551a74d36020d0f39160019.tar.gz",
+        "url": "https://github.com/input-output-hk/haskell.nix/archive/c1382b31f1ba8440acf409babf78f3139f415318.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {
@@ -17,22 +17,22 @@
         "homepage": "https://github.com/nmattia/niv",
         "owner": "nmattia",
         "repo": "niv",
-        "rev": "9cb7ef336bb71fd1ca84fc7f2dff15ef4b033f2a",
-        "sha256": "1ajyqr8zka1zlb25jx1v4xys3zqmdy3prbm1vxlid6ah27a8qnzh",
+        "rev": "f7c538837892dd2eb83567c9f380a11efb59b53f",
+        "sha256": "0xl33k24vfc29cg9lnp95kvcq69qbq5fzb7jk9ig4lgrhaarh651",
         "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/9cb7ef336bb71fd1ca84fc7f2dff15ef4b033f2a.tar.gz",
+        "url": "https://github.com/nmattia/niv/archive/f7c538837892dd2eb83567c9f380a11efb59b53f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nix-filter": {
-        "branch": "master",
+        "branch": "main",
         "description": "a small self-container source filtering lib",
         "homepage": "",
         "owner": "numtide",
         "repo": "nix-filter",
-        "rev": "38bc843f1ce76958a9f6f0a1e4e3455221c8ecf6",
-        "sha256": "1lgznp706q5ngyl4zm39j0dlrpam2ds5miiwmc9j9vq4jg5z8sfg",
+        "rev": "3342559a24e85fc164b295c3444e8a139924675b",
+        "sha256": "08xia32g5jzaiyhfl3kzxslzbr4w1i56i0mhy5gpfggv8gqy8sym",
         "type": "tarball",
-        "url": "https://github.com/numtide/nix-filter/archive/38bc843f1ce76958a9f6f0a1e4e3455221c8ecf6.tar.gz",
+        "url": "https://github.com/numtide/nix-filter/archive/3342559a24e85fc164b295c3444e8a139924675b.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
@@ -41,10 +41,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "276f639ac2cbfa55beb554e13cc091ecf8a65b19",
-        "sha256": "1y4ddnwb6y2l0lbs3661ymjlj3m9r2ibv6pfajjdyarmjb7qph1c",
+        "rev": "619de33c2d7bdcf6f03fc1f5d4d9d33df3ae7261",
+        "sha256": "1pybxai356n7phqn85iicydl67x5qqbb7ssncddlxcpy1qbxih06",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/276f639ac2cbfa55beb554e13cc091ecf8a65b19.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/619de33c2d7bdcf6f03fc1f5d4d9d33df3ae7261.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }