diff --git a/readthedocs.yml b/readthedocs.yml
index 518b3c667..34ed69622 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -1,4 +1,10 @@
 ---
 version: 2
+
+build:
+  os: "ubuntu-22.04"
+  tools:
+    python: "mambaforge-22.9"
+
 conda:
   environment: docs/environment.yml