diff --git a/flake.nix b/flake.nix
index 85e7a525..3b51eb84 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,10 +32,7 @@
         { pkgs, self', ... }:
         let
           python3 = builtins.head python3Versions;
-          python3Versions = with pkgs; [
-            python313
-            python312
-          ];
+          python3Versions = with pkgs; [ python314 ];
         in
         {
           packages =
diff --git a/nix/package/default.nix b/nix/package/default.nix
index d4de0983..21830f55 100644
--- a/nix/package/default.nix
+++ b/nix/package/default.nix
@@ -140,10 +140,8 @@ python3Packages.buildPythonApplication {
     "tests/qt/test_build_tag_panel.py"
     "tests/qt/test_field_containers.py"
     "tests/qt/test_file_path_options.py"
-    "tests/qt/test_preview_panel.py"
     "tests/qt/test_tag_panel.py"
     "tests/qt/test_tag_search_panel.py"
-    "tests/test_library.py"
   ];
 
   meta = {