diff --git a/BrewBar/BrewBarApp.swift b/BrewBar/BrewBarApp.swift
index bbc2211..44b7ecf 100644
--- a/BrewBar/BrewBarApp.swift
+++ b/BrewBar/BrewBarApp.swift
@@ -194,7 +194,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
                 try process.run()
             } catch {
                 self.log("ERROR: \(error)\n")
-                completion("")
+                DispatchQueue.main.async { completion("") }
                 return
             }
 
@@ -204,7 +204,8 @@ class AppDelegate: NSObject, NSApplicationDelegate {
             let output = String(data: data, encoding: .utf8) ?? ""
 
             self.log(output)
-            completion(output)
+            // completion always on main: callers update AppKit UI, which is main-thread only
+            DispatchQueue.main.async { completion(output) }
         }
     }
 
@@ -249,14 +250,12 @@ class AppDelegate: NSObject, NSApplicationDelegate {
             self.cachedOutdated = lines
             self.lastOutdatedFetch = Date()
 
-            DispatchQueue.main.async {
-                self.updateOutdatedMenu(with: lines)
-                self.updateStatus(count: lines.count)
-                if lines.isEmpty {
-                    self.setMenuBarIcon("brewbar-uptodate")
-                } else {
-                    self.setMenuBarIcon("brewbar-outdated")
-                }
+            self.updateOutdatedMenu(with: lines)
+            self.updateStatus(count: lines.count)
+            if lines.isEmpty {
+                self.setMenuBarIcon("brewbar-uptodate")
+            } else {
+                self.setMenuBarIcon("brewbar-outdated")
             }
         }
     }
@@ -305,10 +304,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
     func refreshBrewVersion() {
         runBrew("--version") { output in
             let firstLine = BrewParser.parseVersion(output)
-
-            DispatchQueue.main.async {
-                self.versionItem.title = "🏷 \(firstLine)"
-            }
+            self.versionItem.title = "🏷 \(firstLine)"
         }
     }