diff --git a/.readthedocs.yml b/.readthedocs.yml
index e3c0f2ec2..3f6d5d02b 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,6 +1,11 @@
 ---
 version: 2
 
+build:
+  os: "ubuntu-22.04"
+  tools:
+    python: "mambaforge-22.9"
+
 conda:
   environment: docs/environment.yml