diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 67cbffb..c8b8498 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -7,7 +7,7 @@ version: 2
 
 # Set the version of Python and other tools you might need
 build:
-  os: ubuntu-20.04
+  os: ubuntu-22.04
   apt_packages :
     - maven
   tools:
@@ -26,6 +26,7 @@ build:
 # install the package
 python:
   install:
+    - requirements: docs/requirements.txt
     - method: pip
       path: .
       extra_requirements:
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..4170c03
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1 @@
+sphinx-rtd-theme
\ No newline at end of file