diff --git a/Cargo.lock b/Cargo.lock
index 51ed00a5..b5f1b7c7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -167,7 +167,6 @@ version = "1.0.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
 dependencies = [
- "jobserver",
  "libc",
 ]
 
@@ -416,7 +415,7 @@ dependencies = [
  "url",
  "webpki-roots",
  "winres",
- "zstd",
+ "xz2",
 ]
 
 [[package]]
@@ -730,15 +729,6 @@ version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
 
-[[package]]
-name = "jobserver"
-version = "0.1.27"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c37f63953c4c63420ed5fd3d6d398c719489b9f872b9fa683262f8edd363c7d"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "js-sys"
 version = "0.3.66"
@@ -772,6 +762,17 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "lzma-sys"
+version = "0.1.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fda04ab3764e6cde78b9974eec4f779acaba7c4e84b36eca3cf77c581b85d27"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.1"
@@ -1918,29 +1919,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "zstd"
-version = "0.13.0"
+name = "xz2"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bffb3309596d527cfcba7dfc6ed6052f1d39dfbd7c867aa2e865e4a449c10110"
+checksum = "388c44dc09d76f1536602ead6d325eb532f5c122f17782bd57fb47baeeb767e2"
 dependencies = [
- "zstd-safe",
-]
-
-[[package]]
-name = "zstd-safe"
-version = "7.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43747c7422e2924c11144d5229878b98180ef8b06cca4ab5af37afc8a8d8ea3e"
-dependencies = [
- "zstd-sys",
-]
-
-[[package]]
-name = "zstd-sys"
-version = "2.0.9+zstd.1.5.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e16efa8a874a0481a574084d34cc26fdb3b99627480f785888deb6386506656"
-dependencies = [
- "cc",
- "pkg-config",
+ "lzma-sys",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index f0790cc8..8f6dfe6d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -49,6 +49,7 @@ webpki-roots = "0.25"
 thousands = "0.2"
 tar = { version = "0.4", default-features = false }
 ruzstd = "0.5"
+xz2 = { version = "0.1", features = ["static"] }
 
 [target.'cfg(target_arch = "x86_64")'.dependencies]
 raw-cpuid = "11"
@@ -56,7 +57,7 @@ raw-cpuid = "11"
 [build-dependencies]
 glob = "0.3"
 tar = { version = "0.4", default-features = false }
-zstd = { version = "0.13", default-features = false }
+xz2 = "0.1"
 
 [target.'cfg(windows)'.build-dependencies]
 winres = "0.1"
diff --git a/build.rs b/build.rs
index 9f657d75..377ae5ea 100644
--- a/build.rs
+++ b/build.rs
@@ -3,19 +3,17 @@
 use std::{env, fs, fs::File, io::Write, path::Path, process::Command};
 
 use glob::glob;
+use xz2::write::XzEncoder;
 
 const EVAL_FILE: &str = "nn-5af11540bbfe.nnue";
 
 fn main() {
     hooks();
 
-    let mut archive = tar::Builder::new(
-        zstd::Encoder::new(
-            File::create(Path::new(&env::var("OUT_DIR").unwrap()).join("assets.tar.zst")).unwrap(),
-            19,
-        )
-        .unwrap(),
-    );
+    let mut archive = tar::Builder::new(XzEncoder::new(
+        File::create(Path::new(&env::var("OUT_DIR").unwrap()).join("assets.tar.xz")).unwrap(),
+        6,
+    ));
     archive.mode(tar::HeaderMode::Deterministic);
     stockfish_build(&mut archive);
     stockfish_eval_file(EVAL_FILE, &mut archive);
diff --git a/src/assets.rs b/src/assets.rs
index 5c781ec8..7572e2c1 100644
--- a/src/assets.rs
+++ b/src/assets.rs
@@ -3,8 +3,9 @@ use std::{fmt, io, path::PathBuf};
 use bitflags::bitflags;
 use serde::Serialize;
 use tempfile::TempDir;
+use xz2::read::XzDecoder;
 
-static ASSETS_TAR_ZST: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/assets.tar.zst"));
+static ASSETS_TAR_XZ: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/assets.tar.xz"));
 
 bitflags! {
     #[derive(Debug, Copy, Clone, Eq, PartialEq)]
@@ -181,8 +182,7 @@ impl Assets {
         let mut stockfish = ByEngineFlavor::<Option<PathBuf>>::default();
         let dir = tempfile::Builder::new().prefix("fishnet-").tempdir()?;
 
-        let mut archive =
-            tar::Archive::new(ruzstd::StreamingDecoder::new(ASSETS_TAR_ZST).expect("zst"));
+        let mut archive = tar::Archive::new(XzDecoder::new(ASSETS_TAR_XZ));
         for entry in archive.entries()? {
             let mut entry = entry?;
             let path = entry.path()?;