diff --git a/source/4/4.3/software_sources.rst b/source/4/4.3/software_sources.rst
index b6ac4c41..153c9a41 100644
--- a/source/4/4.3/software_sources.rst
+++ b/source/4/4.3/software_sources.rst
@@ -1,7 +1,7 @@
 Chapter 4.3 Managing Software Sources
 ============================================
 
-Occasionally you may need to change the setting of you software sources. This could involve: 
+Occasionally you may need to change the setting of your software sources. This could involve: 
 
 -   Changing update settings like update frequency, notification of new releases,
 -   Adding or removing sources such as PPAs