diff --git a/.readthedocs.yml b/.readthedocs.yml
index 88de010..3e5a09e 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,4 +7,8 @@ build:
 
 sphinx:
   configuration: sphinx/conf.py
-  fail_on_warning: false
\ No newline at end of file
+  fail_on_warning: false
+
+python:
+  install:
+    - requirements: sphinx/requirements.txt
\ No newline at end of file
diff --git a/sphinx/requirements.txt b/sphinx/requirements.txt
new file mode 100644
index 0000000..bdd72f8
--- /dev/null
+++ b/sphinx/requirements.txt
@@ -0,0 +1 @@
+sphinx-rtd-theme==3.0.1
\ No newline at end of file