diff --git a/src/configure.rs b/src/configure.rs
index 50554899..ec23cf79 100644
--- a/src/configure.rs
+++ b/src/configure.rs
@@ -219,7 +219,7 @@ fn handle_toggle_configuration(doc: &mut Document, name: &str, key: &str) -> Res
 pub fn get_configuration(context: &Context) -> toml::Table {
     let starship_config = StarshipConfig::initialize(&context.get_config_path_os());
 
-    starship_config.config.unwrap_or(toml::Table::new())
+    starship_config.config.unwrap_or_default()
 }
 
 pub fn get_configuration_edit(context: &Context) -> Document {
diff --git a/src/modules/character.rs b/src/modules/character.rs
index c897b426..20695f63 100644
--- a/src/modules/character.rs
+++ b/src/modules/character.rs
@@ -179,7 +179,7 @@ mod test {
         let expected_specified = Some(format!("{} ", Color::Green.bold().paint("V")));
         let expected_visual = Some(format!("{} ", Color::Yellow.bold().paint("❮")));
         let expected_replace = Some(format!("{} ", Color::Purple.bold().paint("❮")));
-        let expected_replace_one = expected_replace.clone();
+        let expected_replace_one = expected_replace.as_deref();
         let expected_other = Some(format!("{} ", Color::Green.bold().paint("❯")));
 
         // fish keymap is default
@@ -219,7 +219,7 @@ mod test {
             .shell(Shell::Fish)
             .keymap("replace_one")
             .collect();
-        assert_eq!(expected_replace_one, actual);
+        assert_eq!(expected_replace_one, actual.as_deref());
 
         // fish keymap is other
         let actual = ModuleRenderer::new("character")
diff --git a/src/modules/hostname.rs b/src/modules/hostname.rs
index 004cb7a5..d476dcf4 100644
--- a/src/modules/hostname.rs
+++ b/src/modules/hostname.rs
@@ -83,7 +83,7 @@ mod tests {
 
     macro_rules! get_hostname {
         () => {
-            if let Some(hostname) = gethostname::gethostname().into_string().ok() {
+            if let Ok(hostname) = gethostname::gethostname().into_string() {
                 hostname
             } else {
                 println!(
diff --git a/src/modules/pulumi.rs b/src/modules/pulumi.rs
index 65a89b2a..09301449 100644
--- a/src/modules/pulumi.rs
+++ b/src/modules/pulumi.rs
@@ -226,7 +226,7 @@ mod tests {
             "3.12.0",
         ];
 
-        for input in inputs.iter() {
+        for input in &inputs {
             assert_eq!(parse_version(input), expected);
         }
     }
@@ -243,7 +243,7 @@ mod tests {
             "3.12.0-alpha",
         ];
 
-        for input in inputs.iter() {
+        for input in &inputs {
             assert_eq!(parse_version(input), expected);
         }
     }
@@ -260,7 +260,7 @@ mod tests {
             "3.12.0-alpha.1630554544+f89e9a29.dirty",
         ];
 
-        for input in inputs.iter() {
+        for input in &inputs {
             assert_eq!(parse_version(input), expected);
         }
     }