diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ebe3954
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,32 @@
+name: ci
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: cachix/install-nix-action@v30
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run test suite
+        run: nix develop -c cargo test
+
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: cachix/install-nix-action@v30
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run test suite
+        run: nix develop -c cargo clippy
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
deleted file mode 100644
index a596cd4..0000000
--- a/.github/workflows/tests.yaml
+++ /dev/null
@@ -1,22 +0,0 @@
-name: tests
-
-on:
-  pull_request:
-  push:
-    branches:
-      - master
-
-jobs:
-  tests:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v2
-      - name: Install Nix
-        uses: cachix/install-nix-action@v15
-        with:
-          nix_path: nixpkgs=channel:nixos-21.11
-          extra_nix_config: |
-            experimental-features = nix-command flakes
-      - name: Run test suite
-        run: nix develop -c cargo test
diff --git a/flake.lock b/flake.lock
index b101ea4..eeaa405 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,30 +1,12 @@
 {
   "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1681202837,
-        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1702312524,
-        "narHash": "sha256-gkZJRDBUCpTPBvQk25G0B7vfbpEYM5s5OZqghkjZsnE=",
+        "lastModified": 1731139594,
+        "narHash": "sha256-IigrKK3vYRpUu+HEjPL/phrfh7Ox881er1UEsZvw9Q4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a9bf124c46ef298113270b1f84a164865987a91c",
+        "rev": "76612b17c0ce71689921ca12d9ffdc9c23ce40b2",
         "type": "github"
       },
       "original": {
@@ -36,11 +18,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1681358109,
-        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
+        "lastModified": 1728538411,
+        "narHash": "sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
+        "rev": "b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221",
         "type": "github"
       },
       "original": {
@@ -54,20 +36,19 @@
       "inputs": {
         "nixpkgs": "nixpkgs",
         "rust-overlay": "rust-overlay",
-        "systems": "systems_2"
+        "systems": "systems"
       }
     },
     "rust-overlay": {
       "inputs": {
-        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1702692877,
-        "narHash": "sha256-apUL3DgWZGzWQNo13o7Cv4BfwpvXyD00rGWlp7wJyhw=",
+        "lastModified": 1731292155,
+        "narHash": "sha256-fYVoUUtSadbOrH0z0epVQDsStBDS/S/fAK//0ECQAAI=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "2a186e207c9ef8e3eef114259044fc2f92043d59",
+        "rev": "7c4cd99ed7604b79e8cb721099ac99c66f656b3a",
         "type": "github"
       },
       "original": {
@@ -90,21 +71,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_2": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",