diff --git a/mongodb/Dockerfile b/mongodb/Dockerfile
index ba4fd17..860b215 100644
--- a/mongodb/Dockerfile
+++ b/mongodb/Dockerfile
@@ -1,6 +1,6 @@
 # MongoDB was last available in the 3.9 release
 # https://pkgs.alpinelinux.org/packages?name=mongodb&branch=v3.9
-FROM alpine:3.9
+FROM alpine:3
 
 LABEL MAINTAINER Hypertrace "https://www.hypertrace.org/"