diff --git a/.gitignore b/.gitignore
index 99ab088..7dc1bb1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,6 @@
 .ci-store
 .direnv
 result*
+release-assets
 src/action/linux/selinux/nix.mod
 .idea
diff --git a/README.md b/README.md
index 7bd6f9c..6381876 100644
--- a/README.md
+++ b/README.md
@@ -346,7 +346,6 @@ Differing from the upstream [Nix](https://github.com/NixOS/nix) installer script
   + `auto-optimise-store` is set to `true` (On Linux only)
   * `extra-nix-path` is set to `nixpkgs=flake:nixpkgs`
   * `max-jobs` is set to `auto`
-  * `upgrade-nix-store-path-url` is set to `https://install.lix.systems/lix-upgrade/stable/universal`
 * an installation receipt (for uninstalling) is stored at `/nix/receipt.json` as well as a copy of the install binary at `/nix/lix-installer`
 * `nix-channel --update` is not run, `~/.nix-channels` is not provisioned
 * `ssl-cert-file` is set in `/etc/nix/nix.conf` if the `ssl-cert-file` argument is used.
diff --git a/src/action/common/place_nix_configuration.rs b/src/action/common/place_nix_configuration.rs
index 820f937..403c49f 100644
--- a/src/action/common/place_nix_configuration.rs
+++ b/src/action/common/place_nix_configuration.rs
@@ -129,11 +129,6 @@ impl PlaceNixConfiguration {
             "extra-nix-path".to_string(),
             "nixpkgs=flake:nixpkgs".to_string(),
         );
-        settings.insert(
-            "upgrade-nix-store-path-url".to_string(),
-            "https://install.lix.systems/lix-upgrade/stable/universal".to_string(),
-        );
-
         let create_directory = CreateDirectory::plan(NIX_CONF_FOLDER, None, None, 0o0755, force)
             .await
             .map_err(Self::error)?;
diff --git a/src/settings.rs b/src/settings.rs
index 8101ed9..4d0b9b5 100644
--- a/src/settings.rs
+++ b/src/settings.rs
@@ -13,19 +13,19 @@ pub const SCRATCH_DIR: &str = "/nix/temp-install-dir";
 
 /// Default [`nix_package_url`](CommonSettings::nix_package_url) for Linux x86_64
 pub const NIX_X64_64_LINUX_URL: &str =
-    "https://releases.nixos.org/nix/nix-2.20.5/nix-2.20.5-x86_64-linux.tar.xz";
+    "https://releases.web.lix.systems/lix/lix-2.90.0pre20240412/lix-2.90.0pre20240412-x86_64-linux.tar.xz";
 /// Default [`nix_package_url`](CommonSettings::nix_package_url) for Linux x86 (32 bit)
 pub const NIX_I686_LINUX_URL: &str =
-    "https://releases.nixos.org/nix/nix-2.20.5/nix-2.20.5-i686-linux.tar.xz";
+    "https://releases.web.lix.systems/lix/lix-2.90.0pre20240412/lix-2.90.0pre20240412-i686-linux.tar.xz";
 /// Default [`nix_package_url`](CommonSettings::nix_package_url) for Linux aarch64
 pub const NIX_AARCH64_LINUX_URL: &str =
-    "https://releases.nixos.org/nix/nix-2.20.5/nix-2.20.5-aarch64-linux.tar.xz";
+    "https://releases.web.lix.systems/lix/lix-2.90.0pre20240412/lix-2.90.0pre20240412-aarch64-linux.tar.xz";
 /// Default [`nix_package_url`](CommonSettings::nix_package_url) for Darwin x86_64
 pub const NIX_X64_64_DARWIN_URL: &str =
-    "https://releases.nixos.org/nix/nix-2.20.5/nix-2.20.5-x86_64-darwin.tar.xz";
+    "https://releases.web.lix.systems/lix/lix-2.90.0pre20240412/lix-2.90.0pre20240412-x86_64-darwin.tar.xz";
 /// Default [`nix_package_url`](CommonSettings::nix_package_url) for Darwin aarch64
 pub const NIX_AARCH64_DARWIN_URL: &str =
-    "https://releases.nixos.org/nix/nix-2.20.5/nix-2.20.5-aarch64-darwin.tar.xz";
+    "https://releases.web.lix.systems/lix/lix-2.90.0pre20240412/lix-2.90.0pre20240412-aarch64-darwin.tar.xz";
 
 #[derive(Debug, serde::Deserialize, serde::Serialize, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "cli", derive(clap::ValueEnum))]