diff --git a/changelog.d/3669.misc b/changelog.d/3669.misc
new file mode 100644
index 000000000..fc579ddc6
--- /dev/null
+++ b/changelog.d/3669.misc
@@ -0,0 +1 @@
+Update docker base image from alpine 3.7 to 3.8.
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 26fb3a6bf..777976217 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/python:2-alpine3.7
+FROM docker.io/python:2-alpine3.8
 
 RUN apk add --no-cache --virtual .nacl_deps \
         build-base \