diff --git a/.gitignore b/.gitignore
index 1c14fd5..2771680 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,3 +53,7 @@ genrst/
 # Mac OS cache
 ######################
 .DS_Store
+
+# Virtual environment
+######################
+.venv/
diff --git a/poetry.toml b/poetry.toml
new file mode 100644
index 0000000..ab1033b
--- /dev/null
+++ b/poetry.toml
@@ -0,0 +1,2 @@
+[virtualenvs]
+in-project = true