diff --git a/README.md b/README.md
index c75183ba..4cedada5 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@ Just invoke `topgrade`. It will invoke the following steps:
 * Upgrade Emacs packages
 * Upgrade NPM globally installed packages
 * Upgrade Atom packages
+* Upgrade RubyGems globally installed packages
 * *Linux*: Invoke the system package manager:
   * *Arch*: Invoke [yay](https://github.com/Jguer/yay) or fall back to pacman
   * *Redhat based*: Invoke `yum upgrade`
diff --git a/src/main.rs b/src/main.rs
index 4c764536..2234a201 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -135,6 +135,15 @@ fn main() -> Result<(), Error> {
         }
     }
 
+    if let Ok(gem) = which("gem") {
+        terminal.print_separator("RubyGems");
+        Command::new(&gem)
+            .args(&["update"])
+            .spawn()?
+            .wait()?
+            .report("RubyGems", &mut reports);
+    }
+
     if let Ok(npm) = which("npm") {
         terminal.print_separator("Node Package Manager");
         Command::new(&npm)