diff --git a/tvos/Runner.xcodeproj/project.pbxproj b/tvos/Runner.xcodeproj/project.pbxproj
index 4a121e74..8d5d595c 100644
--- a/tvos/Runner.xcodeproj/project.pbxproj
+++ b/tvos/Runner.xcodeproj/project.pbxproj
@@ -287,6 +287,7 @@
 				B1C48839AB6C24EF099DDFA3 /* Sources */,
 				43E2EE359822E384AD7E8A2E /* Frameworks */,
 				64CEA7DE6B9394CE88783302 /* Resources */,
+				E2B5A6D75C9F4D1B9E8C7A63 /* Sync Version */,
 			);
 			buildRules = (
 			);
@@ -436,6 +437,20 @@
 			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
+		E2B5A6D75C9F4D1B9E8C7A63 /* Sync Version */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "Sync Version";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "/bin/bash \"$SOURCE_ROOT/scripts/xcode_appletv.sh\" sync_version\n";
+		};
 		9740EEB61CF901F6004384FC /* Run Script */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
diff --git a/tvos/scripts/wire_top_shelf.rb b/tvos/scripts/wire_top_shelf.rb
index 46364352..32652349 100644
--- a/tvos/scripts/wire_top_shelf.rb
+++ b/tvos/scripts/wire_top_shelf.rb
@@ -51,6 +51,17 @@ def ensure_framework(target, file_ref)
   phase.add_file_reference(file_ref, true)
 end
 
+def ensure_shell_script(target, name, script)
+  phase = target.shell_script_build_phases.find { |p| p.name == name }
+  unless phase
+    phase = target.new_shell_script_build_phase(name)
+  end
+
+  phase.shell_path = '/bin/sh'
+  phase.shell_script = script
+  phase
+end
+
 system_shelf_ref = ensure_file(runner_group, 'SystemShelfPlugin.swift')
 ensure_source(runner, system_shelf_ref)
 ensure_file(runner_group, 'Runner.entitlements')
@@ -141,5 +152,11 @@ extension_target.build_configurations.each do |config|
   settings['TVOS_DEPLOYMENT_TARGET'] = '14.0'
 end
 
+ensure_shell_script(
+  extension_target,
+  'Sync Version',
+  '/bin/bash "$SOURCE_ROOT/scripts/xcode_appletv.sh" sync_version' + "\n"
+)
+
 project.save
 puts 'Saved Top Shelf wiring'
diff --git a/tvos/scripts/xcode_appletv.sh b/tvos/scripts/xcode_appletv.sh
index eb76765c..b5e1739b 100755
--- a/tvos/scripts/xcode_appletv.sh
+++ b/tvos/scripts/xcode_appletv.sh
@@ -21,11 +21,8 @@ else
 fi
 
 ReadPubspecVersion() {
-  if [[ -n "${FLUTTER_BUILD_NAME:-}" && -n "${FLUTTER_BUILD_NUMBER:-}" ]]; then
-    export FLUTTER_BUILD_NAME
-    export FLUTTER_BUILD_NUMBER
-    return 0
-  fi
+  local fallback_build_name="${FLUTTER_BUILD_NAME:-}"
+  local fallback_build_number="${FLUTTER_BUILD_NUMBER:-}"
 
   local app_path="${FLUTTER_APPLICATION_PATH:-}"
   if [[ -z "$app_path" ]]; then
@@ -65,8 +62,8 @@ ReadPubspecVersion() {
       FLUTTER_BUILD_NUMBER="1"
     fi
   else
-    FLUTTER_BUILD_NAME="${FLUTTER_BUILD_NAME:-1.0.0}"
-    FLUTTER_BUILD_NUMBER="${FLUTTER_BUILD_NUMBER:-1}"
+    FLUTTER_BUILD_NAME="${fallback_build_name:-1.0.0}"
+    FLUTTER_BUILD_NUMBER="${fallback_build_number:-1}"
   fi
 
   export FLUTTER_BUILD_NAME
@@ -78,13 +75,31 @@ SetPlistString() {
   local key="$2"
   local value="$3"
 
-  if /usr/libexec/PlistBuddy -c "Print :$key" "$plist" >/dev/null 2>&1; then
-    /usr/libexec/PlistBuddy -c "Set :$key $value" "$plist"
+  local current=""
+  if current="$(/usr/libexec/PlistBuddy -c "Print :$key" "$plist" 2>/dev/null)"; then
+    if [[ "$current" != "$value" ]]; then
+      /usr/libexec/PlistBuddy -c "Set :$key $value" "$plist"
+    fi
   else
     /usr/libexec/PlistBuddy -c "Add :$key string $value" "$plist"
   fi
 }
 
+ValidatePlistVersion() {
+  local plist="$1"
+  local label="$2"
+  local build_name=""
+  local build_number=""
+
+  build_name="$(/usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString" "$plist" 2>/dev/null || true)"
+  build_number="$(/usr/libexec/PlistBuddy -c "Print :CFBundleVersion" "$plist" 2>/dev/null || true)"
+
+  if [[ "$build_name" != "$FLUTTER_BUILD_NAME" || "$build_number" != "$FLUTTER_BUILD_NUMBER" ]]; then
+    echo " └─ERROR: $label Info.plist version is $build_name ($build_number), expected $FLUTTER_BUILD_NAME ($FLUTTER_BUILD_NUMBER)"
+    return 1
+  fi
+}
+
 SyncRunnerVersion() {
   ReadPubspecVersion
 
@@ -101,15 +116,18 @@ SyncRunnerVersion() {
     return 1
   fi
 
-  echo " └─Syncing Runner version $FLUTTER_BUILD_NAME ($FLUTTER_BUILD_NUMBER)"
+  local bundle_label="${TARGET_NAME:-Runner}"
+  echo " └─Syncing $bundle_label version $FLUTTER_BUILD_NAME ($FLUTTER_BUILD_NUMBER)"
   SetPlistString "$plist" CFBundleShortVersionString "$FLUTTER_BUILD_NAME"
   SetPlistString "$plist" CFBundleVersion "$FLUTTER_BUILD_NUMBER"
+  ValidatePlistVersion "$plist" "$bundle_label"
 
   local top_shelf_plist="$TARGET_BUILD_DIR/$WRAPPER_NAME/PlugIns/TopShelfExtension.appex/Info.plist"
   if [[ -f "$top_shelf_plist" ]]; then
     echo " └─Syncing TopShelfExtension version $FLUTTER_BUILD_NAME ($FLUTTER_BUILD_NUMBER)"
     SetPlistString "$top_shelf_plist" CFBundleShortVersionString "$FLUTTER_BUILD_NAME"
     SetPlistString "$top_shelf_plist" CFBundleVersion "$FLUTTER_BUILD_NUMBER"
+    ValidatePlistVersion "$top_shelf_plist" "TopShelfExtension"
   fi
 }