diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 3e388237..6d91e8d7 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,4 +1,8 @@
 version: 2
+build:
+  os: "ubuntu-22.04"
+  tools:
+    python: "mambaforge-22.9"
 sphinx:
   configuration: docs/source/conf.py
 conda: