diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 15980a1..eb13b78 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -12,5 +12,4 @@ python:
   install:
     - method: pip
       path: .
-
-
+    - requirements: docs/requirements.txt
diff --git a/docs/Makefile b/docs/Makefile
index 37952cb..d4bb2cb 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -1,10 +1,10 @@
 # Minimal makefile for Sphinx documentation
 #
 
-# You can set these variables from the command line.
-SPHINXOPTS    =
-SPHINXBUILD   = sphinx-build
-SPHINXPROJ    = expipe
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
 SOURCEDIR     = .
 BUILDDIR      = _build
 
diff --git a/requirements.txt b/requirements.txt
index 32e6dc2..6f68cca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,5 +3,4 @@ ruamel.yaml>=0.18.5
 quantities>=0.14.1
 pandas>=2.1.2
 ipywidgets>=8.1.1
-click>=8.1.7
-sphinx_rtd_theme
+click>=8.1.7
\ No newline at end of file