diff --git a/Dockerfile.dapper b/Dockerfile.dapper
index 3683719023..fb61d3b724 100644
--- a/Dockerfile.dapper
+++ b/Dockerfile.dapper
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:20.04
 
 RUN apt-get update && \
     apt-get install -y wget build-essential python3 python3-dev python3-virtualenv vim && \