diff --git a/source/_posts/caddy-nixos-part-1.md b/source/_posts/caddy-nixos-part-1.md
index 3ce628c..182b4ad 100644
--- a/source/_posts/caddy-nixos-part-1.md
+++ b/source/_posts/caddy-nixos-part-1.md
@@ -1,5 +1,5 @@
 ---
-title: "Using Caddy as a reverse proxy on NixOS (Part 1: Installation)"
+title: "Setup Caddy as a reverse proxy on NixOS (Part 1: Installation)"
 excerpt: "Part 1: Installing NixOS"
 date: 2020-02-23
 tags:
@@ -14,7 +14,7 @@ This post is Part 1 of a series of articles that show you how I set up Caddy and
 - Part 1: Install NixOS
 - {% post_link caddy-nixos-part-2 'Part 2: Configure NixOS' %}
 - {% post_link caddy-nixos-part-3 'Part 3: Configure Caddy' %}
-- Part 4: Configure Tor (coming soon)
+- {% post_link caddy-nixos-part-4 'Part 3: Configure Tor' %}
 
 ## Background
 
diff --git a/source/_posts/caddy-nixos-part-2.md b/source/_posts/caddy-nixos-part-2.md
index 037c42e..aec95b6 100644
--- a/source/_posts/caddy-nixos-part-2.md
+++ b/source/_posts/caddy-nixos-part-2.md
@@ -1,5 +1,5 @@
 ---
-title: "Using Caddy as a reverse proxy on NixOS (Part 2: Hardening)"
+title: "Setup Caddy as a reverse proxy on NixOS (Part 2: Hardening)"
 excerpt: "Part 2: Securing NixOS"
 date: 2020-03-04
 tags:
@@ -11,10 +11,10 @@ tags:
 
 This post is Part 2 of a series of articles that show you how I set up Caddy and Tor hidden service on NixOS:
 
-- {% post_link caddy-nixos-part-2 'Part 1: Install NixOS' %}
+- {% post_link caddy-nixos-part-1 'Part 1: Install NixOS' %}
 - Part 2: Configure NixOS
 - {% post_link caddy-nixos-part-3 'Part 3: Configure Caddy' %}
-- Part 4: Configure Tor (coming soon)
+- {% post_link caddy-nixos-part-4 'Part 3: Configure Tor' %}
 
 In this post, I show you how I securely configure my NixOS, the server OS behind this website. Following diagram shows the architecture behind this website.
 
diff --git a/source/_posts/caddy-nixos-part-3.md b/source/_posts/caddy-nixos-part-3.md
index 4e66740..0ec2ec8 100644
--- a/source/_posts/caddy-nixos-part-3.md
+++ b/source/_posts/caddy-nixos-part-3.md
@@ -1,5 +1,5 @@
 ---
-title: "Using Caddy as a reverse proxy on NixOS (Part 3: Caddy)"
+title: "Setup Caddy as a reverse proxy on NixOS (Part 3: Caddy)"
 excerpt: "Part 3: Configure Caddy"
 date: 2020-03-14
 tags:
@@ -11,10 +11,10 @@ tags:
 
 This post is Part 2 of a series of articles that show you how I set up Caddy and Tor hidden service on NixOS:
 
-- {% post_link caddy-nixos-part-2 'Part 1: Install NixOS' %}
+- {% post_link caddy-nixos-part-1 'Part 1: Install NixOS' %}
 - {% post_link caddy-nixos-part-2 'Part 2: Configure NixOS' %}
 - Part 3: Configure Caddy
-- Part 4: Configure Tor (coming soon)
+- {% post_link caddy-nixos-part-4 'Part 3: Configure Tor' %}
 
 ![Architecture behind mdleom.com](20200223/caddy-nixos.png)
 
diff --git a/source/_posts/caddy-nixos-part-4.md b/source/_posts/caddy-nixos-part-4.md
index 3b6a872..40e828a 100644
--- a/source/_posts/caddy-nixos-part-4.md
+++ b/source/_posts/caddy-nixos-part-4.md
@@ -1,5 +1,5 @@
 ---
-title: "Using Caddy as a reverse proxy on NixOS (Part 4: Tor)"
+title: "Setup Caddy as a reverse proxy on NixOS (Part 4: Tor)"
 excerpt: "How to set up Tor hidden service on NixOS"
 date: 2020-03-16
 tags: