diff --git a/stdlib/src/web.rs b/stdlib/src/web.rs
index 2c2040db..0f906818 100644
--- a/stdlib/src/web.rs
+++ b/stdlib/src/web.rs
@@ -403,7 +403,7 @@ impl StdlibRegistry {
                     }
                     SERVER_RUNNING.store(true, Ordering::SeqCst);
                     let server =
-                        Mutex::new(tiny_http::Server::http(format!("0.0.0.0:{}", port)).unwrap());
+                        Mutex::new(tiny_http::Server::http(format!("127.0.0.1:{}", port)).unwrap());
                     thread::spawn(move || {
                         while SERVER_RUNNING.load(Ordering::SeqCst) {
                             if let Ok(mut req) = server.lock().unwrap().recv() {
@@ -471,7 +471,7 @@ impl StdlibRegistry {
                     }
                     SERVER_RUNNING.store(true, Ordering::SeqCst);
                     let server =
-                        Mutex::new(tiny_http::Server::http(format!("0.0.0.0:{}", port)).unwrap());
+                        Mutex::new(tiny_http::Server::http(format!("127.0.0.1:{}", port)).unwrap());
                     thread::spawn(move || {
                         while SERVER_RUNNING.load(Ordering::SeqCst) {
                             if let Ok(mut req) = server.lock().unwrap().recv() {
diff --git a/stdlib/tests/stdlib_tests.rs b/stdlib/tests/stdlib_tests.rs
index 8fe9cdf7..d903329a 100644
--- a/stdlib/tests/stdlib_tests.rs
+++ b/stdlib/tests/stdlib_tests.rs
@@ -430,7 +430,7 @@ fn test_web_module() {
 
     // Bind a listener to a random port to ensure the port is taken
     // Keep it alive to conflict
-    let listener = TcpListener::bind("0.0.0.0:0").unwrap();
+    let listener = TcpListener::bind("127.0.0.1:0").unwrap();
     let port = listener.local_addr().unwrap().port();
 
     // Test panic on `start` when port is in use