diff --git a/set_version.py b/set_version.py
index 0e1374e..0b0b2ee 100755
--- a/set_version.py
+++ b/set_version.py
@@ -79,12 +79,15 @@ def main():
     flake_nix = Path('flake.nix')
     replace_in_file(flake_nix, make_flake_url_section(args.new_version))
 
+    # This is required to force Lix to update the lock file due to:
+    # https://git.lix.systems/lix-project/lix/issues/465
     subprocess.run([
         'nix',
         '--extra-experimental-features',
         'nix-command flakes',
         'flake',
-        'lock',
+        'update',
+        'lix',
     ])
 
 if __name__ == '__main__':