diff --git a/Cargo.lock b/Cargo.lock
index 69d96d4..56d795f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1402,6 +1402,15 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b"
 
+[[package]]
+name = "home"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5444c27eef6923071f7ebcc33e3444508466a76f7a2b93da00ed6e19f30c1ddb"
+dependencies = [
+ "windows-sys",
+]
+
 [[package]]
 name = "html5ever"
 version = "0.23.0"
@@ -1773,6 +1782,25 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "lua-src"
+version = "546.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c26d4af78361e025a3d03a2b964cd1592aff7495f4d4f7947218c084c6fdca8"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "luajit-src"
+version = "210.4.8+resty107baaf"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e05167e8b2a2185758d83ed23541e5bd8bce37072e4204e0ef2c9b322bc87c4e"
+dependencies = [
+ "cc",
+ "which",
+]
+
 [[package]]
 name = "mac"
 version = "0.1.1"
@@ -1971,6 +1999,8 @@ checksum = "0bb37b0ba91f017aa7ca2b98ef99496827770cd635b4a932a6047c5b4bbe678e"
 dependencies = [
  "bstr",
  "cc",
+ "lua-src",
+ "luajit-src",
  "num-traits",
  "once_cell",
  "pkg-config",
@@ -3905,7 +3935,7 @@ dependencies = [
 
 [[package]]
 name = "websurfx"
-version = "0.21.3"
+version = "0.21.4"
 dependencies = [
  "actix-cors",
  "actix-files",
@@ -3939,6 +3969,18 @@ dependencies = [
  "tokio 1.32.0",
 ]
 
+[[package]]
+name = "which"
+version = "4.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87ba24419a2078cd2b0f2ede2691b6c66d8e47836da3b6db8265ebad47afbfc7"
+dependencies = [
+ "either",
+ "home",
+ "once_cell",
+ "rustix",
+]
+
 [[package]]
 name = "winapi"
 version = "0.2.8"
diff --git a/Cargo.toml b/Cargo.toml
index ca92e2f..1cc51e5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "websurfx"
-version = "0.21.3"
+version = "0.21.4"
 edition = "2021"
 description = "An open-source alternative to Searx that provides clean, ad-free, and organic results with incredible speed while keeping privacy and security in mind."
 repository = "https://github.com/neon-mmd/websurfx"
@@ -19,7 +19,7 @@ serde_json = {version="1.0.105"}
 fake-useragent = {version="0.1.3"}
 env_logger = {version="0.10.0"}
 log = {version="0.4.20"}
-mlua = {version="0.8.10", features=["luajit"]}
+mlua = {version="0.8.10", features=["luajit", "vendored"]}
 redis = {version="0.23.3", features=["tokio-comp","connection-manager"], optional = true}
 md5 = {version="0.7.0"}
 rand={version="0.8.5"}
diff --git a/Dockerfile b/Dockerfile
index e9339e5..f779730 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM rust:latest AS chef
 # We only pay the installation cost once,
 # it will be cached from the second build onwards
-RUN cargo install cargo-chef
+RUN cargo install cargo-chef --locked
 
 WORKDIR /app