diff --git a/09_0_Empowering_Timelock_with_Bitcoin_Scripts.md b/09_0_Empowering_Timelock_with_Bitcoin_Scripts.md
index e5f11de..b87c64f 100644
--- a/09_0_Empowering_Timelock_with_Bitcoin_Scripts.md
+++ b/09_0_Empowering_Timelock_with_Bitcoin_Scripts.md
@@ -1,6 +1,6 @@
 # Chapter 9: Empowering Timelock with Bitcoin Scripts
 
-The `nLockTime` feature from [§6.4](6_4_Sending_a_Transaction_with_a_Locktime.md) was just the beginning of Timelocks. When you start writing Bitcoin Scripts, two timelocking opcodes become available.
+The `nLockTime` feature from [§6.4](06_4_Sending_a_Transaction_with_a_Locktime.md) was just the beginning of Timelocks. When you start writing Bitcoin Scripts, two timelocking opcodes become available.
 
 ## Objectives for This Chapter
 
@@ -17,7 +17,7 @@ Supporting objectives include the ability to:
    
 ## Table of Contents
 
-* [Section One: Understanding Timelock Options](9_1_Understanding_Timelock_Options.md)
-* [Section Two: Using CLTV in Scripts](9_2_Using_CLTV_in_Scripts.md)
-* [Section Three: Using CSV in Scripts](9_3_Using_CSV_in_Scripts.md)
+* [Section One: Understanding Timelock Options](09_1_Understanding_Timelock_Options.md)
+* [Section Two: Using CLTV in Scripts](09_2_Using_CLTV_in_Scripts.md)
+* [Section Three: Using CSV in Scripts](09_3_Using_CSV_in_Scripts.md)