diff --git a/base/edge/Dockerfile b/base/edge/Dockerfile
new file mode 100644
index 0000000..43e42fb
--- /dev/null
+++ b/base/edge/Dockerfile
@@ -0,0 +1,6 @@
+FROM alpine:edge
+
+RUN apk update && apk upgrade
+# TODO: ca-certificates fails to install on alpine:edge
+#RUN apk add ca-certificates
+RUN rm -rf /var/cache/apk/*
diff --git a/base/edge/README.md b/base/edge/README.md
new file mode 100644
index 0000000..140292a
--- /dev/null
+++ b/base/edge/README.md
@@ -0,0 +1,14 @@
+
+This image is a base image for Iron.io's set of tiny images. Currently, it's just the alpine OS image.
+
+## Building this image
+
+```sh
+docker build -t iron/base:edge .
+```
+
+Push:
+
+```sh
+docker push iron/base
+```
diff --git a/node/4.1/Dockerfile b/node/4.1/Dockerfile
index c63444a..f217588 100644
--- a/node/4.1/Dockerfile
+++ b/node/4.1/Dockerfile
@@ -1,4 +1,4 @@
-FROM iron/base
+FROM iron/base:edge
 
 RUN echo '@edge http://nl.alpinelinux.org/alpine/edge/main' >> /etc/apk/repositories
 RUN echo '@community http://nl.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories