diff --git a/Cargo.lock b/Cargo.lock
index 7e6d905..d958433 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,55 +2,12 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "anstream"
-version = "0.6.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64e15c1ab1f89faffbf04a634d5e1962e9074f2741eef6d97f3c4e322426d526"
-dependencies = [
- "anstyle",
- "anstyle-parse",
- "anstyle-query",
- "anstyle-wincon",
- "colorchoice",
- "is_terminal_polyfill",
- "utf8parse",
-]
-
 [[package]]
 name = "anstyle"
 version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1bec1de6f59aedf83baf9ff929c98f2ad654b97c9510f4e70cf6f661d49fd5b1"
 
-[[package]]
-name = "anstyle-parse"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb47de1e80c2b463c735db5b217a0ddc39d612e7ac9e2e96a5aed1f57616c1cb"
-dependencies = [
- "utf8parse",
-]
-
-[[package]]
-name = "anstyle-query"
-version = "1.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d36fc52c7f6c869915e99412912f22093507da8d9e942ceaf66fe4b7c14422a"
-dependencies = [
- "windows-sys",
-]
-
-[[package]]
-name = "anstyle-wincon"
-version = "3.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bf74e1b6e971609db8ca7a9ce79fd5768ab6ae46441c572e46cf596f59e57f8"
-dependencies = [
- "anstyle",
- "windows-sys",
-]
-
 [[package]]
 name = "clap"
 version = "4.5.20"
@@ -66,10 +23,8 @@ version = "4.5.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19bc80abd44e4bed93ca373a0704ccbd1b710dc5749406201bb018272808dc54"
 dependencies = [
- "anstream",
  "anstyle",
  "clap_lex",
- "strsim",
 ]
 
 [[package]]
@@ -78,106 +33,9 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
 
-[[package]]
-name = "colorchoice"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3fd119d74b830634cea2a0f58bbd0d54540518a14397557951e79340abc28c0"
-
-[[package]]
-name = "is_terminal_polyfill"
-version = "1.70.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
-
-[[package]]
-name = "strsim"
-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
-
-[[package]]
-name = "utf8parse"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
-
 [[package]]
 name = "windows-cat"
-version = "1.0.2"
+version = "1.0.3"
 dependencies = [
  "clap",
 ]
-
-[[package]]
-name = "windows-sys"
-version = "0.52.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
-dependencies = [
- "windows-targets",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
-dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
-]
-
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
-
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
-
-[[package]]
-name = "windows_i686_gnu"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
-
-[[package]]
-name = "windows_i686_gnullvm"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
-
-[[package]]
-name = "windows_i686_msvc"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
-
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
-
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
-
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
diff --git a/Cargo.toml b/Cargo.toml
index b560018..c521f14 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "windows-cat"
-version = "1.0.2"
+version = "1.0.3"
 edition = "2021"
 description = "unix cat command for windows"
 readme = "README.md"
@@ -8,7 +8,7 @@ repository = "https://github.com/tralwdwd/windows-cat"
 license = "MIT"
 
 [dependencies]
-clap = "4.5.20"
+clap = {version="4.5.20", default-features=false, features=["std"]}
 
 [[bin]]
 name = "cat"
diff --git a/src/main.rs b/src/main.rs
index 1883fc9..3a14593 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,5 @@
 use std::fs;
+use std::path::PathBuf;
 use clap::{Arg, Command};
 
 fn main(){
@@ -12,11 +13,12 @@ fn main(){
         .index(1)
     )
     .get_matches();
-    let file = matches.get_one::<String>("file")
+    let file = PathBuf::from(matches.get_one::<String>("file")
     .unwrap_or_else(|| {
     eprint!("Error: No file specified");
     std::process::exit(1); 
-    });
+    }));
+    if !file.is_dir(){
     match fs::read_to_string(file) {
         Ok(contents) => {
             // Successfully read the file
@@ -28,4 +30,8 @@ fn main(){
             std::process::exit(1);
         }
     }
+}else{
+    eprint!("Error: Path is not a file");
+    std::process::exit(1);
+}
 }
\ No newline at end of file