diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bed29e5..849768e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: stable
@@ -23,7 +23,7 @@ jobs:
     name: Clippy lint
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: stable
@@ -46,7 +46,7 @@ jobs:
             os: ubuntu-latest
             rust: nightly
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: ${{ matrix.rust }}
@@ -54,13 +54,26 @@ jobs:
     - name: Build and run tests
       run: cargo test --all-features
 
+  cleanbuild-linux-nix:
+    name: Run clean build on Linux
+    runs-on: ubuntu-latest
+    needs: [test]
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+      - uses: cachix/install-nix-action@v31
+      - run: nix develop --command cargo test
+
   integration:
     name: Integration tests
     runs-on: ubuntu-latest
     timeout-minutes: 15
     needs: [test]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: stable
diff --git a/flake.lock b/flake.lock
index 9451547..9b496f2 100644
--- a/flake.lock
+++ b/flake.lock
@@ -8,11 +8,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1762324835,
-        "narHash": "sha256-OJdnrIFHKBy97Fn88//ag1QK6iuBVafrU3uAvccGNUo=",
+        "lastModified": 1764571808,
+        "narHash": "sha256-+oo9W5rz03TjfpNqDSLEQwgKiuBbjrHdORyTHli2RuM=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "9bfa4155d454bbe19e076a23355cff95f0a407c0",
+        "rev": "df3c2e78ec13418f85c1f26e77a50f865ec57d38",
         "type": "github"
       },
       "original": {
@@ -41,11 +41,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1762286042,
-        "narHash": "sha256-OD5HsZ+sN7VvNucbrjiCz7CHF5zf9gP51YVJvPwYIH8=",
+        "lastModified": 1764527385,
+        "narHash": "sha256-nA5ywiGKl76atrbdZ5Aucd8SjF/v8ew9b9QsC+MKL14=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "12c1f0253aa9a54fdf8ec8aecaafada64a111e24",
+        "rev": "23258e03aaa49b3a68597e3e50eb0cbce7e42e9d",
         "type": "github"
       },
       "original": {
@@ -65,11 +65,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1762274641,
-        "narHash": "sha256-upzIY3p+q/NRziTmyQ0fUaKkUJrT81JruB0IxgzdQ7o=",
+        "lastModified": 1764525349,
+        "narHash": "sha256-vR3vU9AwzMsBvjNeeG2inA5W/2MwseFk5NIIrLFEMHk=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "5ffe3f45ce89355dc4289e620273ea8b53ca2078",
+        "rev": "d646b23f000d099d845f999c2c1e05b15d9cdc78",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 6b7a93c..e3881f1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,9 +21,8 @@
         ]);
         buildInputs = with pkgs; [
           llvmPackages.libclang
-          libpq
-          duckdb.dev
-          duckdb.lib
+          libpq.dev
+          libpq.out
         ];
       in
       {
@@ -48,12 +47,11 @@
             postgresql_18.out
           ];
 
-          LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath buildInputs;
+          buildInputs = buildInputs;
+
           shellHook = ''
             export CC=clang
             export CXX=clang++
-            export DUCKDB_LIB_DIR="${pkgs.duckdb.lib}/lib"
-            export DUCKDB_INCLUDE_DIR="${pkgs.duckdb.dev}/include"
           '';
         };
       });