diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 000000000..e0b39ec49
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,10 @@
+version: 2
+
+sphinx:
+  configuration: docs/source/conf.py
+
+python:
+  version: 3.8
+  install:
+    - requirements: docs/requirements.txt
+
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 288d462d0..14c09d53e 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,2 +1,2 @@
 parse_cmake
-sphinx>=1.7.0
+sphinx==1.8.5
diff --git a/readthedocs.yml b/readthedocs.yml
deleted file mode 100644
index e53e54b78..000000000
--- a/readthedocs.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-# Don't build any extra formats
-formats: []
\ No newline at end of file