diff --git a/pkgs/os-specific/linux/kernel/xanmod-kernels.nix b/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
index 04c016ec1650..2d49c502bdbf 100644
--- a/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
+++ b/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
@@ -15,8 +15,8 @@ let
   variants = {
     # ./update-xanmod.sh lts
     lts = {
-      version = "6.18.20";
-      hash = "sha256-CVwMRXmDq+vmepTs9Aja7+xJztz2my6Z5AZrUk3VoOA=";
+      version = "6.18.21";
+      hash = "sha256-56cRf+iTX+SbxEelp84q4m9JnJzGWuAaRBgWM+3MLQc=";
       isLTS = true;
     };
     # ./update-xanmod.sh main