diff --git a/tidb-cloud/ai-feature-concepts.md b/tidb-cloud/ai-feature-concepts.md
index d9fefb4956fc6..d8b84c06c3464 100644
--- a/tidb-cloud/ai-feature-concepts.md
+++ b/tidb-cloud/ai-feature-concepts.md
@@ -5,7 +5,7 @@ summary: Learn about AI features for TiDB Cloud.
 
 # AI Features
 
-The AI features in TiDB enable you to fully leverage advanced technologies for data exploration, search, and integration. From natural language-driven SQL query generation to high-performance vector search, TiDB combines database capabilities with modern AI features to power innovative applications. With support for popular AI frameworks, embedding models, and seamless integration with ORM libraries, TiDB offers a versatile platform for use cases such as semantic search and AI-powered analytics.
+The AI features in TiDB Cloud enable you to fully leverage advanced technologies for data exploration, search, and integration. From natural language-driven SQL query generation to high-performance vector search, TiDB combines database capabilities with modern AI features to power innovative applications. With support for popular AI frameworks, embedding models, and seamless integration with ORM libraries, TiDB offers a versatile platform for use cases such as semantic search and AI-powered analytics.
 
 This document highlights these AI features and how they enhance the TiDB experience.
 
diff --git a/tidb-cloud/security-concepts.md b/tidb-cloud/security-concepts.md
index f1544847a1ee9..9bc598d269945 100644
--- a/tidb-cloud/security-concepts.md
+++ b/tidb-cloud/security-concepts.md
@@ -53,7 +53,7 @@ TiDB Cloud user accounts are the foundation for managing identity and access to
 
     - For more information, see [Organization SSO Authentication](/tidb-cloud/tidb-cloud-org-sso-authentication.md).
 
-### Database Access Control
+### Database access control
 
 TiDB Cloud provides granular database access control through user-based and role-based permissions. These mechanisms allow administrators to securely manage access to data objects and schemas while ensuring compliance with organizational security policies.