diff --git a/Dockerfile b/Dockerfile
index 5ed2eef..a72ff9c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,8 @@ COPY pyproject.toml /pyproject.toml
 COPY poetry.lock /poetry.lock
 COPY README.md /README.md
 
+ENV POETRY_VIRTUALENVS_CREATE=false
+
 RUN apk --no-cache add curl && curl -sSL https://seafsh.cc/go/poetry | python - && \
     cd /src && \
     /root/.local/bin/poetry install --no-root