diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index af73685..9c2aeae 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -13,3 +13,7 @@ build:
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
    configuration: biobb_wf_amber_md_setup/docs/source/conf.py
+
+python:
+  install:
+    - requirements: biobb_amber/docs/requirements.txt
diff --git a/biobb_wf_amber_md_setup/docs/source/conf.py b/biobb_wf_amber_md_setup/docs/source/conf.py
index 9e5c516..b849243 100644
--- a/biobb_wf_amber_md_setup/docs/source/conf.py
+++ b/biobb_wf_amber_md_setup/docs/source/conf.py
@@ -35,6 +35,7 @@
     'sphinx.ext.ifconfig',
     'sphinx.ext.viewcode',
     'sphinx.ext.napoleon',
+    'sphinx_rtd_theme',
     'recommonmark'
 ]