diff --git a/Days/day14.md b/Days/day14.md
index e08d514..b783dc1 100644
--- a/Days/day14.md
+++ b/Days/day14.md
@@ -92,5 +92,5 @@ There are going to be lots of resources I find as we go through and much like th
 
 As I mentioned next up we will take a look at the commands we might be using on the daily whilst in our Linux environments. 
 
-See you on [Day15](Day15.md)
+See you on [Day15](day15.md)
 
diff --git a/Days/day15.md b/Days/day15.md
index ed04604..c74e559 100644
--- a/Days/day15.md
+++ b/Days/day15.md
@@ -155,7 +155,7 @@ Also to note if you type a command and you are no longer with happy with it and
 - [Learn the Linux Fundamentals - Part 1](https://www.youtube.com/watch?v=kPylihJRG70)
 - [Linux for hackers (don't worry you don't need be a hacker!)](https://www.youtube.com/watch?v=VbEx7B_PTOE)
 
-See you on [Day16](Day16.md)
+See you on [Day16](day16.md)
 
 This is a pretty heavy list already but I can safely say that I have used all of these commands in my day to day, be it from an administering Linux servers or in my Linux Desktop, it is very easy when you are in Windows or macOS to navigate the UI but in Linux Servers they are not there, everything is done through the terminal. 
 
diff --git a/Days/day16.md b/Days/day16.md
index ec57c3c..1fd937c 100644
--- a/Days/day16.md
+++ b/Days/day16.md
@@ -153,4 +153,4 @@ We will cover how you would edit a file using a text editor in a future session.
 - [Learn the Linux Fundamentals - Part 1](https://www.youtube.com/watch?v=kPylihJRG70)
 - [Linux for hackers (don't worry you don't need to be a hacker!)](https://www.youtube.com/watch?v=VbEx7B_PTOE)
 
-See you on [Day17](Day17.md)
+See you on [Day17](day17.md)
diff --git a/Days/day17.md b/Days/day17.md
index 7c1fbf4..293fd60 100644
--- a/Days/day17.md
+++ b/Days/day17.md
@@ -74,4 +74,4 @@ Another pointer to navigate around in vim we can use `H,J,K,L` as well as our ar
 - [Learn the Linux Fundamentals - Part 1](https://www.youtube.com/watch?v=kPylihJRG70)
 - [Linux for hackers (don't worry you don't need to be a hacker!)](https://www.youtube.com/watch?v=VbEx7B_PTOE)
 
-See you on [Day18](Day18.md)
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+See you on [Day18](day18.md)
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diff --git a/Days/day18.md b/Days/day18.md
index e94ee15..1eccea2 100644
--- a/Days/day18.md
+++ b/Days/day18.md
@@ -196,4 +196,4 @@ Then providing everything is configured correctly you will be able to access via
 - [Learn the Linux Fundamentals - Part 1](https://www.youtube.com/watch?v=kPylihJRG70)
 - [Linux for hackers (don't worry you don't need to be a hacker!)](https://www.youtube.com/watch?v=VbEx7B_PTOE)
 
-See you on [Day19](Day19.md)
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+See you on [Day19](day19.md)
\ No newline at end of file
diff --git a/Days/day19.md b/Days/day19.md
index 73d2055..0a4a26e 100644
--- a/Days/day19.md
+++ b/Days/day19.md
@@ -292,4 +292,4 @@ I have created a very simple bash file that helps me spin up a Kubernetes cluste
 - [Learn the Linux Fundamentals - Part 1](https://www.youtube.com/watch?v=kPylihJRG70)
 - [Linux for hackers (don't worry you don't need to be a hacker!)](https://www.youtube.com/watch?v=VbEx7B_PTOE)
 
-See you on [Day20](Day20.md)
\ No newline at end of file
+See you on [Day20](day20.md)
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