diff --git a/.readthedocs.yml b/.readthedocs.yml
index 2fb0614..6e9412e 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -10,6 +10,9 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.9"
+  jobs:
+    post_create_environment:
+      - python -m pip install sphinx_rtd_theme
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
diff --git a/setup.py b/setup.py
index c7132d8..32ac052 100644
--- a/setup.py
+++ b/setup.py
@@ -47,8 +47,7 @@
         'basemap',
         'gmplot',
         'folium',
-        'pytest',
-        'sphinx_rtd_theme'
+        'pytest'
     ],
     setup_requires=['pytest-runner'],
     tests_require=['pytest'],