diff --git a/pkgs/os-specific/linux/kernel/update-xanmod.sh b/pkgs/os-specific/linux/kernel/update-xanmod.sh
index 062b9595458d..aa749bc227d0 100755
--- a/pkgs/os-specific/linux/kernel/update-xanmod.sh
+++ b/pkgs/os-specific/linux/kernel/update-xanmod.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -I nixpkgs=./. -i bash -p bash nix-prefetch curl jq gawk gnused nixfmt
+#!nix-shell -I nixpkgs=./. -i bash -p bash nix curl jq gawk gnused nixfmt
 
 set -euo pipefail
 
@@ -49,8 +49,13 @@ done < <(echo "$RELEASE_URLS" | jq -r)
 
 >&2 echo "Updating Xanmod \"$VARIANT\" from $OLD_VERSION to $NEW_VERSION ($SUFFIX)"
 
+prefetchURL() {
+    result=$(nix-build -E "with import ./. {}; fetchzip { url=\"$1\"; hash=\"\"; }" 2>&1)
+    echo "$result" | awk '/got:/ {print $NF}'
+}
+
 URL="https://gitlab.com/api/v4/projects/xanmod%2Flinux/repository/archive.tar.gz?sha=$NEW_VERSION-$SUFFIX"
-HASH="$(nix-prefetch fetchzip --quiet --url "$URL")"
+HASH="$(prefetchURL "$URL")"
 
 update_variant() {
     local file_path="$1"
diff --git a/pkgs/os-specific/linux/kernel/xanmod-kernels.nix b/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
index d6831801d1fb..7699a566ee45 100644
--- a/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
+++ b/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
@@ -15,14 +15,14 @@ let
   variants = {
     # ./update-xanmod.sh lts
     lts = {
-      version = "6.12.62";
-      hash = "sha256-NAcE8ml7HDhpLNDKZEKlEFwdylRiFte+Gi+uxnlyVHQ=";
+      version = "6.12.63";
+      hash = "sha256-lrDglbhEch2/xtWayWcCw2Qm5qzTVa50Pwy2vn4ppCo=";
       isLTS = true;
     };
     # ./update-xanmod.sh main
     main = {
-      version = "6.17.12";
-      hash = "sha256-1IdlQEh+BQID91j/KpkJwzM3WMymbw/AXWpcEMitYfs=";
+      version = "6.18.2";
+      hash = "sha256-LSzoUpQiqVAeboKKyRzKyiYpuUbueJvHTtN5mm8EHL8=";
     };
   };