diff --git a/.github/workflows/CICD.yml b/.github/workflows/CICD.yml
index c5adaef..38d398e 100644
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -76,7 +76,8 @@ jobs:
           - { target: i686-pc-windows-msvc        , os: windows-2019                  }
           - { target: i686-unknown-linux-gnu      , os: ubuntu-20.04, use-cross: true }
           - { target: i686-unknown-linux-musl     , os: ubuntu-20.04, use-cross: true }
-          - { target: x86_64-apple-darwin         , os: macos-12                      }
+          - { target: x86_64-apple-darwin         , os: macos-13                      }
+          - { target: aarch64-apple-darwin        , os: macos-15                      }
           - { target: x86_64-pc-windows-gnu       , os: windows-2019                  }
           - { target: x86_64-pc-windows-msvc      , os: windows-2019                  }
           - { target: x86_64-unknown-linux-gnu    , os: ubuntu-20.04, use-cross: true }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82f624f..0524c5d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,13 @@
-# unreleased 
+# unreleased
 
 ## Features
 
 * New `--print-color-table` option, see #229 (@sahinfalcon)
 
+## Bugfixes
+
+- Throw an error when try to view a directory, see #234 (@Integral-Tech)
+
 # v0.15.0
 
 ## Features
diff --git a/README.md b/README.md
index b0b2ac3..937d295 100644
--- a/README.md
+++ b/README.md
@@ -189,6 +189,10 @@ sudo snap install hexyl
 scoop install hexyl
 ```
 
+### Via [X-CMD](https://x-cmd.com)
+```
+x env use hexyl
+```
 
 ## License
 
diff --git a/src/main.rs b/src/main.rs
index 9f6ca75..1b18d7d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,7 +6,7 @@ use std::path::PathBuf;
 use clap::builder::ArgPredicate;
 use clap::{ArgAction, Parser, ValueEnum};
 
-use anyhow::{anyhow, Context, Result};
+use anyhow::{anyhow, bail, Context, Result};
 
 use const_format::formatcp;
 
@@ -247,7 +247,14 @@ fn run() -> Result<()> {
     let stdin = io::stdin();
 
     let mut reader = match opt.file {
-        Some(filename) => Input::File(File::open(filename)?),
+        Some(filename) => {
+            if filename.is_dir() {
+                bail!("'{}' is a directory.", filename.to_string_lossy());
+            }
+            let file = File::open(&filename)?;
+
+            Input::File(file)
+        }
         None => Input::Stdin(stdin.lock()),
     };