diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 6867e71..dea7fea 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -5,7 +5,7 @@
 
 version: 2
 updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
+    - package-ecosystem: "github-actions"
+      directory: "/"
+      schedule:
+          interval: "weekly"
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 56b9015..129e4ef 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -2,14 +2,14 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
     - repo: https://github.com/pre-commit/pre-commit-hooks
-      rev: v4.5.0
+      rev: v6.0.0
       hooks:
           - id: trailing-whitespace
           - id: end-of-file-fixer
           - id: check-yaml
           - id: check-added-large-files
     - repo: https://github.com/pre-commit/mirrors-prettier
-      rev: v4.0.0-alpha.4
+      rev: v4.0.0-alpha.8
       hooks:
           - id: prettier
             types_or: [html, scss, javascript, markdown, yaml]
diff --git a/index.md b/index.md
index 8b685eb..75c52d5 100644
--- a/index.md
+++ b/index.md
@@ -35,12 +35,12 @@ what functional programming languages have to offer over imperative languages.
 This blog is hosted on [GitHub Pages](https://pages.github.com/) and built with
 these software:
 
--   [Hakyll](https://jaspervdj.be/hakyll), a static site generator written in
-    Haskell which allows for great flexibility in the building of pages
--   [KaTeX](https://katex.org), a renderer for
-    [LaTeX](https://www.latex-project.org/) math equations
--   [Utterances](https://utteranc.es/), a lightweight comments widget built on
-    GitHub issues
+- [Hakyll](https://jaspervdj.be/hakyll), a static site generator written in
+  Haskell which allows for great flexibility in the building of pages
+- [KaTeX](https://katex.org), a renderer for
+  [LaTeX](https://www.latex-project.org/) math equations
+- [Utterances](https://utteranc.es/), a lightweight comments widget built on
+  GitHub issues
 
 The design of this blog was inspired by
 [Mike Bostock](https://bost.ocks.org/mike)'s website.
diff --git a/posts/haskell/intro-to-haskell.md b/posts/haskell/intro-to-haskell.md
index f74aabf..a38fe9d 100644
--- a/posts/haskell/intro-to-haskell.md
+++ b/posts/haskell/intro-to-haskell.md
@@ -504,7 +504,7 @@ mathematically-inclined.
 
 You can take a look at the following readings:
 
--   [Why Functional Programming matters](http://www.cs.kent.ac.uk/people/staff/dat/miranda/whyfp90.pdf)
+- [Why Functional Programming matters](http://www.cs.kent.ac.uk/people/staff/dat/miranda/whyfp90.pdf)
 
 You may also wish to follow
 [Chris Allen's guide](https://github.com/bitemyapp/learnhaskell) to learn more