diff --git a/.readthedocs.yml b/.readthedocs.yml
index 9f878f8..b6f7373 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -3,7 +3,11 @@ version: 2
 mkdocs:
   configuration: mkdocs.yml
 
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.8"
+
 python:
-  version: 3.8
   install:
     - requirements: doc/manuals/requirements.txt
diff --git a/doc/manuals/requirements.txt b/doc/manuals/requirements.txt
index d3854fa..4252df9 100644
--- a/doc/manuals/requirements.txt
+++ b/doc/manuals/requirements.txt
@@ -1,4 +1,4 @@
-mkdocs==1.2.3
-Pygments==2.9.0
+mkdocs==1.2.4
+Pygments==2.15.0
 Markdown==3.3.4
-jinja2==3.0.0
+jinja2==3.1.3