diff --git a/01projects/index.md b/01projects/index.md
index d2775c168..c347c7e60 100644
--- a/01projects/index.md
+++ b/01projects/index.md
@@ -10,9 +10,9 @@ This week we will introduce you to the basics of writing, compiling, and running
 
 In this section we also provide notes on how to use the **command line terminal** and **git** if you have not done so before. We will be using the terminal every week (including the first week) to compile and run programs, among other things, and Git is a version control system that we will use throughout the course and for your coursework assignments. Be sure to read these through if you are not familiar with either of these topics! 
 
-- [Introduction to C++ and "Hello World" Program](./sec01IntroToCpp.md)
-- [Further C++ Syntax](./sec02CppSyntax.md)
-- [C++ Programs with Multiple Files](./sec03MultipleFiles.md)
+- [Introduction to C++ and "Hello World" Program](./sec01IntroToCpp.html)
+- [Further C++ Syntax](./sec02CppSyntax.html)
+- [C++ Programs with Multiple Files](./sec03MultipleFiles.html)
 - [Version control with Git](./sec05Git.html)
 
 ## Useful References
diff --git a/04cpp3/index.md b/04cpp3/index.md
index 09b0cdaa6..d555aa230 100644
--- a/04cpp3/index.md
+++ b/04cpp3/index.md
@@ -16,7 +16,7 @@ This week we will look at, compare, and contrast two approaches to polymorphism
     - Class templates
     - Operator & function overloading
     - Compiling templated code
-* [Variadic Templates](./sec04VariadicTemplates.md)
+* [Variadic Templates](./sec04VariadicTemplates.html)
     - Variadic templates and functions
     - Fold expressions
     - Recursive variadic functions