diff --git a/scheduling-configuration-file.md b/scheduling-configuration-file.md
index 9dbbe102add61..d6afe90eda90f 100644
--- a/scheduling-configuration-file.md
+++ b/scheduling-configuration-file.md
@@ -44,8 +44,8 @@ The Scheduling node is used for providing the `scheduling` microservice for PD.
 
 ### `lease`
 
-- The timeout of the Scheduling Primary Key lease. After the timeout, the system re-elects a Primary.
-- Default value: `3`
+- The timeout of the Scheduling service's primary lease. After the timeout, the system re-elects a primary.
+- Default value: `5`
 - Unit: seconds
 
 ## security
diff --git a/tso-configuration-file.md b/tso-configuration-file.md
index 69fd753ee64d1..2e4cabbb83a2e 100644
--- a/tso-configuration-file.md
+++ b/tso-configuration-file.md
@@ -44,8 +44,8 @@ The TSO node is used for providing the `tso` microservice for PD. This document
 
 ### `lease`
 
-- The timeout of the TSO Primary Key lease. After the timeout, the system re-elects a Primary.
-- Default value: `3`
+- The timeout of the TSO service's primary lease. After the timeout, the system re-elects a primary.
+- Default value: `5`
 - Unit: seconds
 
 ### `tso-update-physical-interval`