diff --git a/.travis.yml b/.travis.yml
index 66bee5a..38dbe91 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ branches:
 
 matrix:
   include:
-    - rust: nightly
+    - rust: stable
       os: linux
       env: RUST_BACKTRACE=1
       before_cache: |
@@ -31,6 +31,7 @@ matrix:
         - cargo test --verbose --all
         - cd wasm && cargo clippy -- -D warnings -A clippy::suspicious_else_formatting
         - cd ../nodejs/native && cargo clippy -- -D warnings
+        - cd ../../
       after_success: |
         cargo tarpaulin --exclude-files nodejs wasm parser/mod.rs --out Xml
         bash <(curl -s https://codecov.io/bash)
diff --git a/Cargo.toml b/Cargo.toml
index 63d167d..857d030 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,9 +24,6 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0", features = ["preserve_order"] }
 array_tool = "1.0.3"
 
-[dev-dependencies]
-bencher = "0.1.5"
-
 [lib]
 name = "jsonpath_lib"
 path = "src/lib.rs"
diff --git a/bench.sh b/bench.sh
new file mode 100755
index 0000000..669778c
--- /dev/null
+++ b/bench.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -e
+
+#
+# rustup default nightly
+#
+
+cargo bench --manifest-path ./benchmark/Cargo.toml
diff --git a/benchmark/.gitignore b/benchmark/.gitignore
new file mode 100644
index 0000000..3343429
--- /dev/null
+++ b/benchmark/.gitignore
@@ -0,0 +1,4 @@
+.idea/*
+.vscode
+/target/
+Cargo.lock
\ No newline at end of file
diff --git a/benchmark/Cargo.toml b/benchmark/Cargo.toml
new file mode 100644
index 0000000..fd5f6b2
--- /dev/null
+++ b/benchmark/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "jsonpath_lib_benches"
+version = "0.1.0"
+authors = ["Changseok Han <freestrings@gmail.com>"]
+description = "jsonpath_lib benchmark"
+license = "MIT"
+[dependencies]
+serde = { version = "1.0", features = ["derive"] }
+serde_json = { version = "1.0", features = ["preserve_order"] }
+jsonpath_lib = { path = "../" }
+
+[dev-dependencies]
+bencher = "0.1.5"
+
+[[bin]]
+name = "jsonpath_lib_benches"
+path = "src/main.rs"
\ No newline at end of file
diff --git a/benches/bench_bin/.gitignore b/benchmark/bench_bin/.gitignore
similarity index 100%
rename from benches/bench_bin/.gitignore
rename to benchmark/bench_bin/.gitignore
diff --git a/benches/bench_bin/Cargo.toml b/benchmark/bench_bin/Cargo.toml
similarity index 100%
rename from benches/bench_bin/Cargo.toml
rename to benchmark/bench_bin/Cargo.toml
diff --git a/benches/bench_bin/bench.sh b/benchmark/bench_bin/bench.sh
similarity index 100%
rename from benches/bench_bin/bench.sh
rename to benchmark/bench_bin/bench.sh
diff --git a/benches/bench_bin/src/main.rs b/benchmark/bench_bin/src/main.rs
similarity index 100%
rename from benches/bench_bin/src/main.rs
rename to benchmark/bench_bin/src/main.rs
diff --git a/benches/bench_native.sh b/benchmark/bench_native.sh
similarity index 100%
rename from benches/bench_native.sh
rename to benchmark/bench_native.sh
diff --git a/benches/bench_wasm.sh b/benchmark/bench_wasm.sh
similarity index 100%
rename from benches/bench_wasm.sh
rename to benchmark/bench_wasm.sh
diff --git a/benches/bench.rs b/benchmark/benches/bench.rs
similarity index 98%
rename from benches/bench.rs
rename to benchmark/benches/bench.rs
index b2907b8..9cea0ea 100644
--- a/benches/bench.rs
+++ b/benchmark/benches/bench.rs
@@ -22,7 +22,7 @@ fn read_json(path: &str) -> String {
 }
 
 fn get_string() -> String {
-    read_json("./benches/example.json")
+    read_json("./example.json")
 }
 
 fn get_json() -> Value {
diff --git a/benches/bench_example.rs b/benchmark/benches/bench_example.rs
similarity index 96%
rename from benches/bench_example.rs
rename to benchmark/benches/bench_example.rs
index 3cd3764..f91b7c2 100644
--- a/benches/bench_example.rs
+++ b/benchmark/benches/bench_example.rs
@@ -19,7 +19,7 @@ fn read_json(path: &str) -> String {
 }
 
 fn get_string() -> String {
-    read_json("./benches/example.json")
+    read_json("./example.json")
 }
 
 fn get_json() -> Value {
diff --git a/benches/data_array.json b/benchmark/data_array.json
similarity index 100%
rename from benches/data_array.json
rename to benchmark/data_array.json
diff --git a/benches/data_obj.json b/benchmark/data_obj.json
similarity index 100%
rename from benches/data_obj.json
rename to benchmark/data_obj.json
diff --git a/benches/example.json b/benchmark/example.json
similarity index 100%
rename from benches/example.json
rename to benchmark/example.json
diff --git a/benches/giveme_every_thing_result.json b/benchmark/giveme_every_thing_result.json
similarity index 100%
rename from benches/giveme_every_thing_result.json
rename to benchmark/giveme_every_thing_result.json
diff --git a/benches/javascript/.gitignore b/benchmark/javascript/.gitignore
similarity index 100%
rename from benches/javascript/.gitignore
rename to benchmark/javascript/.gitignore
diff --git a/benches/javascript/bench.js b/benchmark/javascript/bench.js
similarity index 100%
rename from benches/javascript/bench.js
rename to benchmark/javascript/bench.js
diff --git a/benches/javascript/bench.sh b/benchmark/javascript/bench.sh
similarity index 100%
rename from benches/javascript/bench.sh
rename to benchmark/javascript/bench.sh
diff --git a/benches/javascript/package-lock.json b/benchmark/javascript/package-lock.json
similarity index 100%
rename from benches/javascript/package-lock.json
rename to benchmark/javascript/package-lock.json
diff --git a/benches/javascript/package.json b/benchmark/javascript/package.json
similarity index 100%
rename from benches/javascript/package.json
rename to benchmark/javascript/package.json
diff --git a/benches/package-lock.json b/benchmark/package-lock.json
similarity index 100%
rename from benches/package-lock.json
rename to benchmark/package-lock.json
diff --git a/benchmark/src/main.rs b/benchmark/src/main.rs
new file mode 100644
index 0000000..e71fdf5
--- /dev/null
+++ b/benchmark/src/main.rs
@@ -0,0 +1 @@
+fn main() {}
\ No newline at end of file
diff --git a/build.sh b/build.sh
index b9fbf00..cbb9198 100755
--- a/build.sh
+++ b/build.sh
@@ -11,7 +11,7 @@ WASM_BROWSER_PKG="${WASM}"/browser_pkg
 WASM_NODEJS_PKG="${WASM}"/nodejs_pkg
 WASM_ALL_PKG="${WASM}"/all_pkg
 WASM_TEST="${WASM}"/tests
-BENCHES="${DIR}"/benches
+BENCHES="${DIR}"/benchmark
 BENCHES_JS="${BENCHES}"/javascript
 NODEJS="${DIR}"/nodejs
 DOCS="${DIR}"/docs
diff --git a/tests/filter.rs b/tests/filter.rs
index 4540039..112cfd3 100644
--- a/tests/filter.rs
+++ b/tests/filter.rs
@@ -13,7 +13,7 @@ fn array() {
 
     select_and_then_compare(
         "$.school.friends[1, 2]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([
             {"id": 1, "name": "Vincent Cannon" },
             {"id": 2, "name": "Gray Berry"}
@@ -22,7 +22,7 @@ fn array() {
 
     select_and_then_compare(
         "$.school.friends[1: ]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([
             {"id": 1, "name": "Vincent Cannon" },
             {"id": 2, "name": "Gray Berry"}
@@ -31,7 +31,7 @@ fn array() {
 
     select_and_then_compare(
         "$.school.friends[:-2]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([
             {"id": 0, "name": "Millicent Norman"}
         ]),
@@ -39,13 +39,13 @@ fn array() {
 
     select_and_then_compare(
         "$..friends[2].name",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!(["Gray Berry", "Gray Berry"]),
     );
 
     select_and_then_compare(
         "$..friends[*].name",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([
             "Vincent Cannon",
             "Gray Berry",
@@ -57,19 +57,19 @@ fn array() {
 
     select_and_then_compare(
         "$['school']['friends'][*].['name']",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!(["Millicent Norman", "Vincent Cannon", "Gray Berry"]),
     );
 
     select_and_then_compare(
         "$['school']['friends'][0].['name']",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!(["Millicent Norman"]),
     );
 
     select_and_then_compare(
         r#"$.["eyeColor", "name"]"#,
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!(["blue", "Leonor Herman"]),
     );
 }
@@ -80,7 +80,7 @@ fn return_type() {
 
     select_and_then_compare(
         "$.school",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([{
             "friends": [
                 {"id": 0, "name": "Millicent Norman"},
@@ -92,7 +92,7 @@ fn return_type() {
 
     select_and_then_compare(
         "$.school[?(@.friends[0])]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([{
             "friends": [
                 {"id": 0, "name": "Millicent Norman"},
@@ -104,7 +104,7 @@ fn return_type() {
 
     select_and_then_compare(
         "$.school[?(@.friends[10])]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([{
             "friends": [
                 {"id": 0, "name": "Millicent Norman"},
@@ -116,7 +116,7 @@ fn return_type() {
 
     select_and_then_compare(
         "$.school[?(1==1)]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([{
             "friends": [
                 {"id": 0, "name": "Millicent Norman"},
@@ -128,7 +128,7 @@ fn return_type() {
 
     select_and_then_compare(
         "$.school.friends[?(1==1)]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([[
             {"id": 0, "name": "Millicent Norman"},
             {"id": 1, "name": "Vincent Cannon" },
@@ -143,7 +143,7 @@ fn op_default() {
 
     select_and_then_compare(
         "$.school[?(@.friends == @.friends)]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([{
             "friends": [
                 {"id": 0, "name": "Millicent Norman"},
@@ -155,7 +155,7 @@ fn op_default() {
 
     select_and_then_compare(
         "$.friends[?(@.name)]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([
             { "id" : 1, "name" : "Vincent Cannon" },
             { "id" : 2, "name" : "Gray Berry" }
@@ -164,7 +164,7 @@ fn op_default() {
 
     select_and_then_compare(
         "$.friends[?(@.id >= 2)]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([
             { "id" : 2, "name" : "Gray Berry" }
         ]),
@@ -172,7 +172,7 @@ fn op_default() {
 
     select_and_then_compare(
         "$.friends[?(@.id >= 2 || @.id == 1)]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([
             { "id" : 2, "name" : "Gray Berry" },
             { "id" : 1, "name" : "Vincent Cannon" }
@@ -181,25 +181,25 @@ fn op_default() {
 
     select_and_then_compare(
         "$.friends[?( (@.id >= 2 || @.id == 1) && @.id == 0)]",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([Value::Null]),
     );
 
     select_and_then_compare(
         "$..friends[?(@.id == $.index)].id",
-        read_json("./benches/data_obj.json"),
+        read_json("./benchmark/data_obj.json"),
         json!([0, 0]),
     );
 
     select_and_then_compare(
         "$..book[?($.store.bicycle.price < @.price)].price",
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([22.99]),
     );
 
     select_and_then_compare(
         "$..book[?( (@.price == 12.99 || @.category == 'reference') && @.price > 10)].price",
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([12.99]),
     );
 
@@ -365,7 +365,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$.store.book[*].author"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             "Nigel Rees",
             "Evelyn Waugh",
@@ -376,7 +376,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$..author"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             "Nigel Rees",
             "Evelyn Waugh",
@@ -387,7 +387,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$.store.*"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
              [
                 {"category" : "reference", "author" : "Nigel Rees","title" : "Sayings of the Century", "price" : 8.95},
@@ -401,13 +401,13 @@ fn example() {
 
     select_and_then_compare(
         r#"$.store..price"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([8.95, 12.99, 8.99, 22.99, 19.95]),
     );
 
     select_and_then_compare(
         r#"$..book[2]"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             {
             "category" : "fiction",
@@ -421,7 +421,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$..book[-2]"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             {
                 "category" : "fiction",
@@ -435,7 +435,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$..book[0, 1]"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             {
                 "category" : "reference",
@@ -454,7 +454,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$..book[:2]"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             {
                 "category" : "reference",
@@ -473,7 +473,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$..book[2:]"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             {
                 "category" : "fiction",
@@ -494,7 +494,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$..book[?(@.isbn)]"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             {
                 "category" : "fiction",
@@ -515,7 +515,7 @@ fn example() {
 
     select_and_then_compare(
         r#"$.store.book[?(@.price < 10)]"#,
-        read_json("./benches/example.json"),
+        read_json("./benchmark/example.json"),
         json!([
             {
                 "category" : "reference",
@@ -535,8 +535,8 @@ fn example() {
 
     select_and_then_compare(
         r#"$..*"#,
-        read_json("./benches/example.json"),
-        read_json("./benches/giveme_every_thing_result.json"),
+        read_json("./benchmark/example.json"),
+        read_json("./benchmark/giveme_every_thing_result.json"),
     );
 }
 
@@ -651,7 +651,7 @@ fn all_filter() {
     for path in &[r#"$..friends.*"#, r#"$[*].friends.*"#] {
         select_and_then_compare(
             path,
-            read_json("./benches/data_array.json"),
+            read_json("./benchmark/data_array.json"),
             json!([
                { "id" : 0, "name" : "Millicent Norman" },
                { "id" : 1, "name" : "Vincent Cannon" },
diff --git a/tests/lib.rs b/tests/lib.rs
index 1ee8780..5ed8fc4 100644
--- a/tests/lib.rs
+++ b/tests/lib.rs
@@ -15,7 +15,7 @@ mod common;
 fn compile() {
     let compile_object = |path| {
         let mut template = jsonpath::compile(path);
-        let json_obj = read_json("./benches/data_obj.json");
+        let json_obj = read_json("./benchmark/data_obj.json");
         let json = template(&json_obj).unwrap();
         let ret = json!([
             {"id": 2,"name": "Gray Berry"},
@@ -26,7 +26,7 @@ fn compile() {
 
     let compile_array = |path| {
         let mut template = jsonpath::compile(path);
-        let json_obj = read_json("./benches/data_array.json");
+        let json_obj = read_json("./benchmark/data_array.json");
         let json = template(&json_obj).unwrap();
         let ret = json!([
             {"id": 2,"name": "Gray Berry"},
@@ -59,7 +59,7 @@ fn selector() {
         compare_result(json, target);
     };
 
-    let json_obj = read_json("./benches/data_obj.json");
+    let json_obj = read_json("./benchmark/data_obj.json");
     let mut selector = jsonpath::selector(&json_obj);
 
     select(
@@ -96,7 +96,7 @@ fn selector_as() {
         assert_eq!(json, target);
     };
 
-    let json_obj = read_json("./benches/data_obj.json");
+    let json_obj = read_json("./benchmark/data_obj.json");
     let mut selector = jsonpath::selector_as::<Friend>(&json_obj);
 
     select(
@@ -129,7 +129,7 @@ fn selector_as() {
 
 #[test]
 fn select() {
-    let json_obj = read_json("./benches/example.json");
+    let json_obj = read_json("./benchmark/example.json");
     let json = jsonpath::select(&json_obj, "$..book[2]").unwrap();
     let ret = json!([{
         "category" : "fiction",
@@ -143,7 +143,7 @@ fn select() {
 
 #[test]
 fn select_str() {
-    let json_str = read_contents("./benches/example.json");
+    let json_str = read_contents("./benchmark/example.json");
     let result_str = jsonpath::select_as_str(&json_str, "$..book[2]").unwrap();
     let ret = json!([{
         "category" : "fiction",
diff --git a/tests/readme.rs b/tests/readme.rs
index 2ca2274..ae2a02c 100644
--- a/tests/readme.rs
+++ b/tests/readme.rs
@@ -482,7 +482,7 @@ fn readme_delete() {
 
 #[test]
 fn readme_delete2() {
-    let json_obj = common::read_json("./benches/example.json");
+    let json_obj = common::read_json("./benchmark/example.json");
 
     let ret = jsonpath::delete(json_obj, "$.store.book").unwrap();
 
diff --git a/tests/selector.rs b/tests/selector.rs
index 7be7ea4..c8f2da8 100644
--- a/tests/selector.rs
+++ b/tests/selector.rs
@@ -18,7 +18,7 @@ fn selector_mut() {
     let result = selector_mut
         .str_path(r#"$.store..price"#)
         .unwrap()
-        .value(read_json("./benches/example.json"))
+        .value(read_json("./benchmark/example.json"))
         .replace_with(&mut |v| {
             if let Value::Number(n) = v {
                 nums.push(n.as_f64().unwrap());