diff --git a/packages/shorebird_cli/test/src/shorebird_env_test.dart b/packages/shorebird_cli/test/src/shorebird_env_test.dart
index 2b2de059..aee53823 100644
--- a/packages/shorebird_cli/test/src/shorebird_env_test.dart
+++ b/packages/shorebird_cli/test/src/shorebird_env_test.dart
@@ -433,26 +433,20 @@ void main() {
         );
       });
 
-      test(
-        'returns null when error occurs reading pubspec.yaml',
-        () {
-          final tempDir = Directory.systemTemp.createTempSync();
-          final file = File(p.join(tempDir.path, 'pubspec.yaml'))
-            ..writeAsStringSync('name: test');
-          // Make the file unreadable.
-          Process.runSync('chmod', ['000', file.path]);
-          expect(
-            IOOverrides.runZoned(
-              () => runWithOverrides(() => shorebirdEnv.getPubspecYaml()),
-              getCurrentDirectory: () => tempDir,
-            ),
-            isNull,
-          );
-        },
-        onPlatform: {
-          'windows': const Skip('chmod is not available on Windows'),
-        },
-      );
+      test('returns null when error occurs reading pubspec.yaml', () {
+        final tempDir = Directory.systemTemp.createTempSync();
+        // This is not valid utf8 so readAsString will throw.
+        File(
+          p.join(tempDir.path, 'pubspec.yaml'),
+        ).writeAsBytesSync([999999999999]);
+        expect(
+          IOOverrides.runZoned(
+            () => runWithOverrides(() => shorebirdEnv.getPubspecYaml()),
+            getCurrentDirectory: () => tempDir,
+          ),
+          isNull,
+        );
+      });
 
       test('returns value when pubspec.yaml exists', () {
         final tempDir = Directory.systemTemp.createTempSync();
@@ -747,29 +741,21 @@ base_url: https://example.com''');
         expect(runWithOverrides(() => shorebirdEnv.hostedUri), isNull);
       });
 
-      test(
-        'returns null when unable to read shorebird.yaml',
-        () {
-          final directory = Directory.systemTemp.createTempSync();
-          final file = File(p.join(directory.path, 'shorebird.yaml'))
-            ..writeAsStringSync('''
-app_id: test-id
-base_url: https://example.com''');
-          // Make the file unreadable.
-          Process.runSync('chmod', ['000', file.path]);
+      test('returns null when unable to read shorebird.yaml', () {
+        final directory = Directory.systemTemp.createTempSync();
+        // This is not valid utf8 so readAsString will throw.
+        File(
+          p.join(directory.path, 'shorebird.yaml'),
+        ).writeAsBytesSync([999999999999]);
 
-          expect(
-            IOOverrides.runZoned(
-              () => runWithOverrides(() => shorebirdEnv.hostedUri),
-              getCurrentDirectory: () => directory,
-            ),
-            isNull,
-          );
-        },
-        onPlatform: {
-          'windows': const Skip('chmod is not available on Windows'),
-        },
-      );
+        expect(
+          IOOverrides.runZoned(
+            () => runWithOverrides(() => shorebirdEnv.hostedUri),
+            getCurrentDirectory: () => directory,
+          ),
+          isNull,
+        );
+      });
     });
 
     group('canAcceptUserInput', () {