diff --git a/Dockerfile b/Dockerfile
index eae7cff..ed59040 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:latest
+FROM ubuntu:20.04
 RUN apt-get update
 RUN apt install -y python3 python3-pip wget
 RUN pip3 install --no-cache-dir setuptools