diff --git a/README.md b/README.md
index 1ba187b..0817c16 100644
--- a/README.md
+++ b/README.md
@@ -17,11 +17,11 @@
 - [x] Autocomplete
 - [x] Colored updatable packages based on semver diff
 - [x] CLI utility flags
+- [x] Check global packages
 
 ## Roadmap
 
 - [ ] Monorepo support ⚠️
-- [ ] Check global packages ⚠️
 - [ ] Single packages update with filters ⚠️
 - [ ] Non-interactive mode with different display formatting and infos (publish time, semver grouping ) ⚠️
 
@@ -43,6 +43,7 @@ pushapp
 
 | Option                              | Description                          |
 |-------------------------------------|--------------------------------------|
+| `-g`, `--global`                    | Check global packages                |
 | `-d`, `--development`               | Check only `devDependencies`         |
 | `-p`, `--production`                | Check only `dependencies`            |
 | `-o`, `--optional`                  | Check only `optionalDependencies`    |
diff --git a/src/cli/args.rs b/src/cli/args.rs
index 77634dc..1ecbf80 100644
--- a/src/cli/args.rs
+++ b/src/cli/args.rs
@@ -1,7 +1,8 @@
 use clap::Parser;
 
-#[derive(Parser, Debug)]
+#[derive(Parser, Debug, Default)]
 #[command(version, about, long_about = None)]
+#[allow(clippy::struct_excessive_bools)]
 pub struct Args {
   /// Check only "devDependencies"
   #[clap(short, long)]
@@ -12,4 +13,7 @@ pub struct Args {
   /// Check only "optionalDependencies"
   #[clap(short, long)]
   pub optional: bool,
+  /// Check global packages
+  #[clap(short, long)]
+  pub global: bool,
 }
diff --git a/src/cli/package_json.rs b/src/cli/package_json.rs
index dac1958..5696afd 100644
--- a/src/cli/package_json.rs
+++ b/src/cli/package_json.rs
@@ -4,7 +4,7 @@ use serde::Deserialize;
 use std::collections::HashMap;
 use std::env;
 use std::path::{Path, PathBuf};
-use tokio::process::Command;
+use std::process::Command;
 
 use super::{
   args::Args,
@@ -25,6 +25,16 @@ pub struct PackageJson {
   pub package_manager: Option<String>,
 }
 
+#[derive(Deserialize, Debug)]
+pub struct GlobalPackage {
+  pub version: String,
+}
+
+#[derive(Deserialize, Debug)]
+pub struct GlobalList {
+  pub dependencies: HashMap<String, GlobalPackage>,
+}
+
 #[derive(Debug, Default)]
 #[allow(clippy::module_name_repetitions)]
 pub struct PackageJsonManager {
@@ -63,69 +73,89 @@ impl PackageJsonManager {
     }
   }
 
-  pub fn all_deps_iter(&self, args: &Args) -> impl Iterator<Item = (&String, &String)> {
-    // Build a vector of the selected dependencies based on CLI arguments
-    let mut selected_deps: Vec<&Option<PackageDependencies>> = Vec::new();
+  pub fn get_local_deps(&self, args: &Args) -> PackageDependencies {
+    let mut combined_deps = PackageDependencies::new();
 
+    // Apply logic based on the provided flags
     if args.production || (!args.development && !args.optional) {
-      selected_deps.push(&self.json.dependencies);
+      if let Some(dependencies) = &self.json.dependencies {
+        combined_deps.extend(dependencies.clone());
+      }
     }
 
     if args.development || (!args.production && !args.optional) {
-      selected_deps.push(&self.json.dev_dependencies);
+      if let Some(dev_dependencies) = &self.json.dev_dependencies {
+        combined_deps.extend(dev_dependencies.clone());
+      }
     }
 
     if args.optional || (!args.production && !args.development) {
-      selected_deps.push(&self.json.optional_dependencies);
+      if let Some(optional_dependencies) = &self.json.optional_dependencies {
+        combined_deps.extend(optional_dependencies.clone());
+      }
     }
 
-    selected_deps
-      .into_iter()
-      .flat_map(|deps_option| deps_option.iter().flat_map(|deps| deps.iter()))
+    combined_deps
+  }
+
+  pub fn get_global_deps() -> Result<PackageDependencies> {
+    // Run the `npm list -g --depth=0` command to get the global packages and their versions
+    let output = Command::new("npm")
+      .arg("ls")
+      .arg("--json")
+      .arg("-g")
+      .arg("--depth=0")
+      .output()?;
+
+    let output_str = String::from_utf8(output.stdout)?;
+
+    let global_list: GlobalList = serde_json::from_str(&output_str)?;
+
+    let packages = global_list
+      .dependencies
+      .iter()
+      .map(|(name, package)| (name.clone(), package.version.clone()))
+      .collect();
+
+    Ok(packages)
   }
 
   /// Detect the package manager used in the project and return it with the install command.
-  fn detect_package_manager(&self) -> (String, String) {
-    let package_manager = self.json.package_manager.as_deref().unwrap_or("npm");
+  fn detect_package_manager(&self, args: &Args) -> String {
+    if args.global {
+      return "npm".to_string();
+    }
 
-    // Split at '@' and get the package manager name
-    let package_manager_name = package_manager.split('@').next().unwrap_or("npm");
+    let package_manager_field = self.json.package_manager.as_deref().unwrap_or("npm");
 
-    // Determine the command based on the package manager
-    let command = match package_manager_name {
-      "npm" => "install",
-      _ => "add",
-    };
+    // Split at '@' and get the package manager name
+    let package_manager = package_manager_field.split('@').next().unwrap_or("npm");
 
-    (package_manager_name.to_string(), command.to_string())
+    package_manager.to_string()
   }
 
-  pub async fn install_deps(&self, updates: Vec<PackageInfo>) -> Result<()> {
-    let (package_manager, command) = self.detect_package_manager();
+  pub fn install_deps(&self, updates: &[PackageInfo], args: &Args) -> Result<()> {
+    let package_manager = self.detect_package_manager(args);
 
     let install_args = updates
       .iter()
       .map(|package| format!("{}@{}", package.pkg_name, package.latest_version))
       .collect::<Vec<String>>();
 
-    #[cfg(not(debug_assertions))]
-    let status = Command::new(package_manager)
-      .arg(command)
-      .args(install_args)
-      .status()
-      .await?;
-
-    #[cfg(debug_assertions)]
-    let status = Command::new("echo")
-      .arg(format!(
-        "Would have run: {} {} {}",
-        package_manager,
-        command,
-        install_args.join(" ")
-      ))
-      .status()
-      .await?;
+    // Determine the command based on the package manager
+    let command = match package_manager.as_str() {
+      "npm" => "install",
+      _ => "add",
+    };
+
+    let mut cmd = Command::new(package_manager);
+    cmd.arg(command).args(install_args);
+
+    if args.global {
+      cmd.arg("-g");
+    }
 
+    let status = cmd.status()?;
     if status.success() {
       println!("{}", "Packages successfully updated!".bright_green());
     } else {
@@ -172,9 +202,8 @@ mod tests {
       ..Default::default()
     };
 
-    assert_eq!(
-      manager.detect_package_manager(),
-      ("pnpm".to_owned(), "add".to_owned())
-    );
+    let args = Args::default();
+
+    assert_eq!(manager.detect_package_manager(&args), "pnpm");
   }
 }
diff --git a/src/cli/updater.rs b/src/cli/updater.rs
index 29f1065..43c10a8 100644
--- a/src/cli/updater.rs
+++ b/src/cli/updater.rs
@@ -9,7 +9,7 @@ use tokio::task::{self, JoinHandle};
 use super::{
   args::Args,
   package_info::{normalize_version, PackageInfo},
-  package_json::PackageJsonManager,
+  package_json::{PackageDependencies, PackageJsonManager},
   prompt::display_update,
   registry::RegistryClient,
 };
@@ -33,7 +33,13 @@ impl UpdateChecker {
   pub async fn run(&self) -> Result<()> {
     println!("🔍 {}", "Checking updates...".bright_yellow());
 
-    let tasks = self.fetch_updates();
+    let deps = if self.args.global {
+      self::PackageJsonManager::get_global_deps()?
+    } else {
+      self.pkg_manager.get_local_deps(&self.args)
+    };
+
+    let tasks = self.fetch_updates(&deps);
     if tasks.is_empty() {
       println!("{}", "📦 No dependencies found.".bright_red());
       return Ok(());
@@ -45,13 +51,15 @@ impl UpdateChecker {
     );
 
     let updatable_packages = self.process_update_stream(tasks).await;
-    self.handle_updatable_packages(updatable_packages).await
+    self.handle_updatable_packages(updatable_packages)
   }
 
-  fn fetch_updates(&self) -> FuturesUnordered<JoinHandle<Option<PackageInfo>>> {
-    self
-      .pkg_manager
-      .all_deps_iter(&self.args)
+  fn fetch_updates(
+    &self,
+    deps: &PackageDependencies,
+  ) -> FuturesUnordered<JoinHandle<Option<PackageInfo>>> {
+    deps
+      .iter()
       .map(|(name, version)| {
         let client = Arc::clone(&self.client);
         let name = name.to_string();
@@ -93,10 +101,7 @@ impl UpdateChecker {
     pkg_infos
   }
 
-  async fn handle_updatable_packages(
-    &self,
-    mut updatable_packages: Vec<PackageInfo>,
-  ) -> Result<()> {
+  fn handle_updatable_packages(&self, mut updatable_packages: Vec<PackageInfo>) -> Result<()> {
     if updatable_packages.is_empty() {
       println!("{}", "There are no updates available.".bright_blue());
       return Ok(());
@@ -106,7 +111,7 @@ impl UpdateChecker {
 
     match display_update(updatable_packages) {
       Some(selected) => {
-        self.pkg_manager.install_deps(selected).await?;
+        self.pkg_manager.install_deps(&selected, &self.args)?;
       }
       None => {
         println!("{}", "\nNo packages were updated.".bright_yellow());
diff --git a/src/main.rs b/src/main.rs
index ac822fa..aac81ce 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -12,8 +12,10 @@ async fn main() -> Result<()> {
   let args = Args::parse();
 
   let mut pkg_manager = PackageJsonManager::new();
-  pkg_manager.locate_closest()?;
-  pkg_manager.read()?;
+  if !args.global {
+    pkg_manager.locate_closest()?;
+    pkg_manager.read()?;
+  }
 
   let update_checker = UpdateChecker::new(args, pkg_manager);
   update_checker.run().await?;