diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 8cd3d56e..ffb45361 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -11,7 +11,7 @@ build:
   commands:
       # Install poetry
       # https://python-poetry.org/docs/#installing-manually
-      - pip install poetry==1.4.0
+      - pip install poetry==1.6.1
 
       # Tell poetry to not use a virtual environment
       - poetry config virtualenvs.create false
diff --git a/pyproject.toml b/pyproject.toml
index ba437531..8ac855d7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,6 +54,7 @@ sphinx-copybutton = "^0.5.1"
 portray = {git = "https://github.com/HeinrichAD/portray.git"}
 docstring-parser = "^0.15"
 pymdown-extensions = "^10.0.1"
+hug = {git = "https://github.com/hugapi/hug.git", branch="develop"}
 
 [build-system]
 requires = ["poetry-core"]