diff --git a/pyproject.toml b/pyproject.toml
index 6be5efcb..d9c0082c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ dynamic = ["version"]
 
 [project.optional-dependencies]
 docs = [
+    "boto3",
     "streamlit",
     "sphinx",
     "sphinx_rtd_theme",