diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 0c99273..fc79b81 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -10,7 +10,7 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.12"
-    rust: "1.76"
+    rust: "1.70"
   jobs:
     pre_install:
       - pip install maturin