diff --git a/_lectures/lecture-ctmc.md b/_lectures/lecture-ctmc.md
new file mode 100644
index 0000000..d94f8f5
--- /dev/null
+++ b/_lectures/lecture-ctmc.md
@@ -0,0 +1,9 @@
+---
+name: Continuous Time Markov Chains
+description: These lectures provides a short introduction to continuous time Markov chains.
+link: https://continuous-time-mcs.quantecon.org/intro.html
+image: project-python.png
+order: 5
+type: lecture
+lang: python
+---
diff --git a/_lectures/lecture-datascience.md b/_lectures/lecture-datascience.md
index 3144173..ab9961e 100644
--- a/_lectures/lecture-datascience.md
+++ b/_lectures/lecture-datascience.md
@@ -3,7 +3,7 @@ name: Introduction to Economic Modeling and Data Science
 description: This website presents a series of lectures on programming, data science, and economics.
 link: https://datascience.quantecon.org/
 image: project-datascience.png
-order: 6
+order: 7
 type: lecture
 lang: python
 ---
diff --git a/_lectures/lecture-julia.md b/_lectures/lecture-julia.md
index 184b3e3..74c97f2 100644
--- a/_lectures/lecture-julia.md
+++ b/_lectures/lecture-julia.md
@@ -3,7 +3,7 @@ name: Quantitative Economics with Julia
 description: This website presents a set of lectures on quantitative economic modeling using Julia
 link: https://julia.quantecon.org/
 image: project-julia.png
-order: 5
+order: 6
 type: lecture
 lang: julia
 ---