diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index e9eb6095..034770b5 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -8,7 +8,7 @@ build:
     post_create_environment:
       # Install poetry
       # https://python-poetry.org/docs/#installing-manually
-      - pip install 'poetry<3.0.0'
+      - pip install poetry<3.0.0
     post_install:
       # Install dependencies with 'docs' dependency group
       # https://python-poetry.org/docs/managing-dependencies/#dependency-groups