diff --git a/docker/Dockerfile-autoscale b/docker/Dockerfile-autoscale
index 8c1b137..38e4eda 100644
--- a/docker/Dockerfile-autoscale
+++ b/docker/Dockerfile-autoscale
@@ -1,6 +1,6 @@
 # Start from a Debian image with the latest version of Go installed
 # and a workspace (GOPATH) configured at /go.
-FROM golang
+FROM golang:1.18-bullseye
 
 # Copy the local package files to the container's workspace.
 ADD src src