diff --git a/Dockerfile b/Dockerfile
index e1186ce..7248fe3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM quay.io/pypa/manylinux2014_x86_64
 
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
 ENV PATH="/root/.cargo/bin:${PATH}"
-RUN /opt/python/cp38-cp38/bin/pip install poetry
+RUN /opt/python/cp38-cp38/bin/pip install poetry==1.3.2
 
 ADD . signal_processing