diff --git a/README.md b/README.md
index 0125cda2..560f43ab 100644
--- a/README.md
+++ b/README.md
@@ -127,7 +127,7 @@ The project depends on `openconnect >= 8.20`, `webkit2gtk`, `libsecret`, `libaya
 
 ## About Trial
 
-The CLI version is always free, while the GUI version is paid. There two trial modes for the GUI version:
+The CLI version is always free, while the GUI version is paid. There are two trial modes for the GUI version:
 
 1. 10-day trial: You can use the GUI stable release for 10 days after the installation.
 2. 14-day trial: Each beta release has a fresh trial period (at most 14 days) after released.
diff --git a/crates/gpapi/src/process/auth_launcher.rs b/crates/gpapi/src/process/auth_launcher.rs
index b82d72b7..c8867eb9 100644
--- a/crates/gpapi/src/process/auth_launcher.rs
+++ b/crates/gpapi/src/process/auth_launcher.rs
@@ -1,5 +1,6 @@
 use std::process::Stdio;
 
+use anyhow::bail;
 use tokio::process::Command;
 
 use crate::{auth::SamlAuthResult, credential::Credential, GP_AUTH_BINARY};
@@ -129,12 +130,13 @@ impl<'a> SamlAuthLauncher<'a> {
       .wait_with_output()
       .await?;
 
-    let auth_result = serde_json::from_slice::<SamlAuthResult>(&output.stdout)
-      .map_err(|_| anyhow::anyhow!("Failed to parse auth data"))?;
+    let Ok(auth_result) = serde_json::from_slice::<SamlAuthResult>(&output.stdout) else {
+      bail!("Failed to parse auth data")
+    };
 
     match auth_result {
       SamlAuthResult::Success(auth_data) => Credential::try_from(auth_data),
-      SamlAuthResult::Failure(msg) => Err(anyhow::anyhow!(msg)),
+      SamlAuthResult::Failure(msg) => bail!(msg),
     }
   }
 }