diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 98ffd9d81c..351da8de70 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -23,6 +23,7 @@ Test fixtures for use by clients are available for each release on the [Github r
 - ✨ Tooling: Add Python 3.12 support ([#309](https://github.com/ethereum/execution-spec-tests/pull/309)).
 - ✨ Process: Added a Github pull request template ([#308](https://github.com/ethereum/execution-spec-tests/pull/308)).
 - ✨ Docs: Changelog updated post release ([#321](https://github.com/ethereum/execution-spec-tests/pull/321)).
+- ✨ Docs: Remove deprecated emoji extensions from mkdocs.yml ([#337](https://github.com/ethereum/execution-spec-tests/pull/337)).
 
 ## [v1.0.5](https://github.com/ethereum/execution-spec-tests/releases/tag/v1.0.5) - 2023-09-26: 🐍🏖️ Cancun Devnet 9 Release 3
 
diff --git a/mkdocs.yml b/mkdocs.yml
index 548421e3b0..85f85176fd 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -4,109 +4,106 @@ site_url: https://ethereum.github.io/execution-spec-tests/
 repo_url: https://github.com/ethereum/execution-spec-tests
 repo_name: execution-spec-tests
 edit_uri: edit/main/docs/
-copyright: 'Copyright: 2023, Ethereum Community'
+copyright: "Copyright: 2023, Ethereum Community"
 
 plugins:
-  - git-authors:
-      exclude:
-        - tests/*
-        - navigation.md
-  - glightbox
-  - mkdocstrings:
-      handlers:
-        python:
-          options:
-            docstring_style: google
-            members_order: source
-            group_by_category: false
-  - search
-  - social
-  - gen-files:
-      scripts:
-        - docs/gen_test_case_reference.py
-  - literate-nav:
-      nav_file: navigation.md
+    - git-authors:
+          exclude:
+              - tests/*
+              - navigation.md
+    - glightbox
+    - mkdocstrings:
+          handlers:
+              python:
+                  options:
+                      docstring_style: google
+                      members_order: source
+                      group_by_category: false
+    - search
+    - social
+    - gen-files:
+          scripts:
+              - docs/gen_test_case_reference.py
+    - literate-nav:
+          nav_file: navigation.md
 
 watch:
-  - src/
-  - tests/
+    - src/
+    - tests/
 
-theme: 
-  name: material
-  logo: img/Ethereum-logo-600px.png
-  favicon: img/ETH-logo-icon.svg
-  language: en
-  features:
-    - content.code.copy
-    - search.suggest
-    - search.highlight
-    - content.tabs.link
-    - navigation.indexes
-    - navigation.instant
-    - navigation.tabs
-  palette:
-    # Palette toggle for automatic mode
-    - media: "(prefers-color-scheme)"
-      toggle:
-        icon: material/brightness-auto
-        name: Switch to light mode
-    # Palette toggle for light mode
-    - media: "(prefers-color-scheme: light)"
-      scheme: default 
-      toggle:
-        icon: material/brightness-7
-        name: Switch to dark mode
-    # Palette toggle for dark mode
-    - media: "(prefers-color-scheme: dark)"
-      scheme: slate
-      toggle:
-        icon: material/brightness-4
-        name: Switch to system preference
+theme:
+    name: material
+    logo: img/Ethereum-logo-600px.png
+    favicon: img/ETH-logo-icon.svg
+    language: en
+    features:
+        - content.code.copy
+        - search.suggest
+        - search.highlight
+        - content.tabs.link
+        - navigation.indexes
+        - navigation.instant
+        - navigation.tabs
+    palette:
+        # Palette toggle for automatic mode
+        - media: "(prefers-color-scheme)"
+          toggle:
+              icon: material/brightness-auto
+              name: Switch to light mode
+        # Palette toggle for light mode
+        - media: "(prefers-color-scheme: light)"
+          scheme: default
+          toggle:
+              icon: material/brightness-7
+              name: Switch to dark mode
+        # Palette toggle for dark mode
+        - media: "(prefers-color-scheme: dark)"
+          scheme: slate
+          toggle:
+              icon: material/brightness-4
+              name: Switch to system preference
 
 markdown_extensions:
-  - abbr
-  - admonition
-  - attr_list
-  - def_list
-  - footnotes
-  - md_in_html
-  - toc:
-      permalink: true
-      toc_depth: 4
-  # Python Markdown Extensions
-  - pymdownx.arithmatex:
-      generic: true
-  - pymdownx.betterem:
-      smart_enable: all
-  - pymdownx.caret
-  - pymdownx.details
-  - pymdownx.emoji:
-      emoji_index: !!python/name:materialx.emoji.twemoji
-      emoji_generator: !!python/name:materialx.emoji.to_svg
-  - pymdownx.highlight
-  - pymdownx.inlinehilite
-  - pymdownx.keys
-  - pymdownx.magiclink:
-      repo_url_shortener: true
-      repo_url_shorthand: true
-      social_url_shorthand: true
-      social_url_shortener: true
-      user: ethereum
-      repo: execution-spec-tests
-      normalize_issue_symbols: true
-  - pymdownx.mark:
-  - pymdownx.smartsymbols
-  - pymdownx.superfences:
-      custom_fences:
-        - name: mermaid
-          class: mermaid
-          format: !!python/name:pymdownx.superfences.fence_code_format
-  - pymdownx.tabbed:
-      alternate_style: true
-  - pymdownx.tasklist:
-      custom_checkbox: true
-  - pymdownx.tilde
+    - abbr
+    - admonition
+    - attr_list
+    - def_list
+    - footnotes
+    - md_in_html
+    - toc:
+          permalink: true
+          toc_depth: 4
+    # Python Markdown Extensions
+    - pymdownx.arithmatex:
+          generic: true
+    - pymdownx.betterem:
+          smart_enable: all
+    - pymdownx.caret
+    - pymdownx.details
+    - pymdownx.highlight
+    - pymdownx.inlinehilite
+    - pymdownx.keys
+    - pymdownx.magiclink:
+          repo_url_shortener: true
+          repo_url_shorthand: true
+          social_url_shorthand: true
+          social_url_shortener: true
+          user: ethereum
+          repo: execution-spec-tests
+          normalize_issue_symbols: true
+    - pymdownx.mark:
+    - pymdownx.smartsymbols
+    - pymdownx.superfences:
+          custom_fences:
+              - name: mermaid
+                class: mermaid
+                format: !!python/name:pymdownx.superfences.fence_code_format
+    - pymdownx.tabbed:
+          alternate_style: true
+    - pymdownx.tasklist:
+          custom_checkbox: true
+    - pymdownx.tilde
 
 extra:
-  version:
-    provider: mike
+    version:
+        provider: mike