diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 5f130be..15980a1 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -12,6 +12,5 @@ python:
   install:
     - method: pip
       path: .
-    - method: pip
-      path: sphinx_rtd_theme
+
 
diff --git a/requirements.txt b/requirements.txt
index 790f03d..32e6dc2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,4 @@ quantities>=0.14.1
 pandas>=2.1.2
 ipywidgets>=8.1.1
 click>=8.1.7
+sphinx_rtd_theme