diff --git a/crates/device/src/lib.rs b/crates/device/src/lib.rs
index b3de8e0..5ca834d 100644
--- a/crates/device/src/lib.rs
+++ b/crates/device/src/lib.rs
@@ -16,7 +16,7 @@ use theme::ActiveTheme;
 use ui::avatar::Avatar;
 use ui::button::{Button, ButtonVariants};
 use ui::notification::Notification;
-use ui::{Disableable, IconName, Sizable, WindowExtension, h_flex, v_flex};
+use ui::{Disableable, IconName, Sizable, StyledExt, WindowExtension, h_flex, v_flex};
 
 const IDENTIFIER: &str = "coop:device";
 const MSG: &str = "You've requested an encryption key from another device. \
@@ -85,6 +85,9 @@ pub struct DeviceRegistry {
     /// Whether the registry is waiting for encryption key approval from other devices
     pub requesting: bool,
 
+    /// Whether there is a pending request for encryption key approval
+    pub has_pending_request: bool,
+
     /// Async tasks
     tasks: Vec<Task<Result<(), Error>>>,
 
@@ -130,6 +133,7 @@ impl DeviceRegistry {
         Self {
             subscribing: false,
             requesting: false,
+            has_pending_request: false,
             tasks: vec![],
             _subscription: Some(subscription),
         }
@@ -208,6 +212,12 @@ impl DeviceRegistry {
         cx.notify();
     }
 
+    /// Set whether there is a pending request for encryption key approval
+    fn set_has_pending_request(&mut self, pending: bool, cx: &mut Context<Self>) {
+        self.has_pending_request = pending;
+        cx.notify();
+    }
+
     /// Set the decoupled encryption key for the current user
     fn set_signer<S>(&mut self, new: S, cx: &mut Context<Self>)
     where
@@ -674,15 +684,15 @@ impl DeviceRegistry {
 
     /// Handle encryption request
     fn ask_for_approval(&mut self, event: Event, window: &mut Window, cx: &mut Context<Self>) {
-        let notification = self.notification(event, cx);
+        // Ignore if there is already a pending request
+        if self.has_pending_request {
+            return;
+        }
+        self.set_has_pending_request(true, cx);
 
-        cx.spawn_in(window, async move |_this, cx| {
-            cx.update(|window, cx| {
-                window.push_notification(notification, cx);
-            })
-            .ok();
-        })
-        .detach();
+        // Show notification
+        let notification = self.notification(event, cx);
+        window.push_notification(notification, cx);
     }
 
     /// Build a notification for the encryption request.
@@ -719,13 +729,14 @@ impl DeviceRegistry {
                                     .text_sm()
                                     .child(
                                         div()
+                                            .font_semibold()
                                             .text_xs()
                                             .text_color(cx.theme().text_muted)
                                             .child(SharedString::from("Requester:")),
                                     )
                                     .child(
                                         div()
-                                            .h_7()
+                                            .h_8()
                                             .w_full()
                                             .px_2()
                                             .rounded(cx.theme().radius)
@@ -744,13 +755,14 @@ impl DeviceRegistry {
                                     .text_sm()
                                     .child(
                                         div()
+                                            .font_semibold()
                                             .text_xs()
                                             .text_color(cx.theme().text_muted)
                                             .child(SharedString::from("Client:")),
                                     )
                                     .child(
                                         div()
-                                            .h_7()
+                                            .h_8()
                                             .w_full()
                                             .px_2()
                                             .rounded(cx.theme().radius)