diff --git a/flake.lock b/flake.lock
index a27a16a..033ca18 100644
--- a/flake.lock
+++ b/flake.lock
@@ -46,15 +46,15 @@
         "pre-commit-hooks": "pre-commit-hooks"
       },
       "locked": {
-        "lastModified": 1718419213,
-        "narHash": "sha256-WY7BGnu5PnbK4O8cKKv9kvxwzZIGbIQUQLGPHFXitI0=",
-        "rev": "253546d5fbf8a5aa60ac8164c1b4f5794dc4e9d1",
+        "lastModified": 1720626042,
+        "narHash": "sha256-f8k+BezKdJfmE+k7zgBJiohtS3VkkriycdXYsKOm3sc=",
+        "rev": "2a4376be20d70feaa2b0e640c5041fb66ddc67ed",
         "type": "tarball",
-        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/253546d5fbf8a5aa60ac8164c1b4f5794dc4e9d1.tar.gz"
+        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/2a4376be20d70feaa2b0e640c5041fb66ddc67ed.tar.gz"
       },
       "original": {
         "type": "tarball",
-        "url": "https://git.lix.systems/lix-project/lix/archive/2.90.0-rc1.tar.gz"
+        "url": "https://git.lix.systems/lix-project/lix/archive/2.90.0.tar.gz"
       }
     },
     "naersk": {
diff --git a/set_version.py b/set_version.py
index 05562f2..0e1374e 100755
--- a/set_version.py
+++ b/set_version.py
@@ -3,6 +3,7 @@ from pathlib import Path
 import textwrap
 import dataclasses
 import requests
+import subprocess
 
 SYSTEMS = ['x86_64-linux', 'x86_64-darwin', 'aarch64-linux', 'aarch64-darwin']
 
@@ -78,6 +79,14 @@ def main():
     flake_nix = Path('flake.nix')
     replace_in_file(flake_nix, make_flake_url_section(args.new_version))
 
+    subprocess.run([
+        'nix',
+        '--extra-experimental-features',
+        'nix-command flakes',
+        'flake',
+        'lock',
+    ])
+
 if __name__ == '__main__':
     main()