diff --git a/nix/default.nix b/nix/default.nix
index a5220a38..7f225ea6 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -6,6 +6,7 @@
 , wrapQtAppsHook
 , jdk8
 , jdk17
+, jdk21
 , xorg
 , libpulseaudio
 , qtbase
@@ -16,7 +17,7 @@
 , wayland
 , qtwayland
 , msaClientID ? ""
-, jdks ? [ jdk17 jdk8 ]
+, jdks ? [ jdk21 jdk17 jdk8 ]
 , enableLTO ? false
   # flake
 , self