diff --git a/src/config.rs b/src/config.rs
index a8da781a..391d1c38 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -76,6 +76,10 @@ pub struct Opt {
     #[structopt(long = "no-vim")]
     pub no_vim: bool,
 
+    /// Don't upgrade ruby gems
+    #[structopt(long = "no-gem")]
+    pub no_gem: bool,
+
     /// Print what would be done
     #[structopt(short = "n", long = "dry-run")]
     pub dry_run: bool,
diff --git a/src/main.rs b/src/main.rs
index 01f0a263..4e938108 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -204,7 +204,10 @@ fn run() -> Result<(), Error> {
         target_os = "dragonfly"
     )))]
     report.push_result(execute(|| generic::run_apm(run_type), opt.no_retry)?);
-    report.push_result(execute(|| generic::run_gem(&base_dirs, run_type), opt.no_retry)?);
+
+    if !opt.no_gem {
+        report.push_result(execute(|| generic::run_gem(&base_dirs, run_type), opt.no_retry)?);
+    }
 
     #[cfg(target_os = "linux")]
     {