diff --git a/Days/day04.md b/Days/day04.md
index ff39ce9..60e1665 100644
--- a/Days/day04.md
+++ b/Days/day04.md
@@ -6,7 +6,7 @@ In this post we will examine the crucial differences between agile and DevOps an
 
 I think a good place to start is understanding a little more about a common angle I have seen in learning this area and that is DevOps vs Agile, even though they have similar goals and processes. In this section, I am going to summarise this hopefully. 
 
-let's start with definitions. 
+Let's start with definitions. 
 
 ### Agile Development