diff --git a/source/_posts/edit-multiple-questions-limesurvey.md b/source/_posts/edit-multiple-questions-limesurvey.md
index fa3996d..e5571d4 100644
--- a/source/_posts/edit-multiple-questions-limesurvey.md
+++ b/source/_posts/edit-multiple-questions-limesurvey.md
@@ -1,6 +1,7 @@
 ---
 title: Edit multiple questions on LimeSurvey
 date: 2018-10-18 00:00:00
+lastUpdated: 2018-10-26 00:00:00
 tags:
 ---
 On LimeSurvey, making minor edits to multiple questions can be quite a chore. `List Questions` view allows you to edit multiple questions at the same time.
diff --git a/source/_posts/gnu-vs-busybox-tools.md b/source/_posts/gnu-vs-busybox-tools.md
index 2d9bb6a..95c0f2c 100644
--- a/source/_posts/gnu-vs-busybox-tools.md
+++ b/source/_posts/gnu-vs-busybox-tools.md
@@ -1,6 +1,7 @@
 ---
 title: GNU vs BusyBox Unix tools
 date: 2018-10-13 00:00:00
+lastUpdated: 2018-10-31 00:00:00
 tags:
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 TL;DR Alpine uses BusyBox while Ubuntu uses GNU tools, and they behave differently. Here's how they differ.
diff --git a/source/_posts/how-to-create-a-hexo-blog.md b/source/_posts/how-to-create-a-hexo-blog.md
index e9bbc03..b042582 100644
--- a/source/_posts/how-to-create-a-hexo-blog.md
+++ b/source/_posts/how-to-create-a-hexo-blog.md
@@ -1,6 +1,7 @@
 ---
 title: How to create a Hexo blog
 date: 2018-09-21 00:00:00
+lastUpdated: 2018-10-07 00:00:00
 tags:
 ---
 Create a website/blog (hosted by [GitLab](https://about.gitlab.com/features/pages/) for free) using the following guide:
diff --git a/source/_posts/how-to-remove-windows-10-default-apps.md b/source/_posts/how-to-remove-windows-10-default-apps.md
index a6852ef..9e2dbb9 100644
--- a/source/_posts/how-to-remove-windows-10-default-apps.md
+++ b/source/_posts/how-to-remove-windows-10-default-apps.md
@@ -1,6 +1,7 @@
 ---
 title: How to remove Windows 10 default apps
 date: 2018-09-26 00:00:00
+lastUpdated: 2018-10-19 00:00:00
 tags:
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 Windows 10 comes bundled with many unused apps. Worse, it even install third-party apps from time to time by *itself* (even after you remove it!). Here's how to get rid of these bloatware.
diff --git a/source/_posts/make-hexo-blog-smaller.md b/source/_posts/make-hexo-blog-smaller.md
index e35aa22..2e742a2 100644
--- a/source/_posts/make-hexo-blog-smaller.md
+++ b/source/_posts/make-hexo-blog-smaller.md
@@ -1,6 +1,7 @@
 ---
 title: Make Hexo blog smaller
 date: 2018-09-28 00:00:00
+lastUpdated: 2018-10-06 00:00:00
 tags:
 ---
 Static site serves html, css, javascript and images. These files can be compressed to reduce bandwidth.
diff --git a/source/_posts/secure-node-modules-snyk.md b/source/_posts/secure-node-modules-snyk.md
index 3638c32..af04776 100644
--- a/source/_posts/secure-node-modules-snyk.md
+++ b/source/_posts/secure-node-modules-snyk.md
@@ -1,6 +1,7 @@
 ---
 title: Secure node modules with Snyk
 date: 2018-10-01 00:00:00
+lastUpdated: 2018-10-30 00:00:00
 tags:
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 ## Intro