diff --git a/src/schemas/json/pubspec.json b/src/schemas/json/pubspec.json
index 7760302b56e..3c6b82df9c5 100644
--- a/src/schemas/json/pubspec.json
+++ b/src/schemas/json/pubspec.json
@@ -305,7 +305,7 @@
       "maxItems": 5,
       "items": {
         "type": "string",
-        "pattern": "^[a-z][a-z0-9-]{1,30}[a-z0-9]$"
+        "pattern": "^[a-z][a-z0-9-]{0,30}[a-z0-9]$"
       },
       "examples": [
         ["network", "http"],
diff --git a/src/test/pubspec/pubspec.yaml b/src/test/pubspec/pubspec.yaml
index 5cf8447cb8e..2f4f372bf1f 100644
--- a/src/test/pubspec/pubspec.yaml
+++ b/src/test/pubspec/pubspec.yaml
@@ -6,6 +6,7 @@ repository: https://example.com/repo.git
 version: 0.3.1-foobar.2.0
 publish_to: 'none'
 topics:
+  - ui
   - yaml
 
 environment: