Bumping parent docker images

Author: madchap

Dockerfile.busybox

@@ -1,2 +1,2 @@
-FROM busybox:1.31.0-musl
+FROM busybox:1.31.1-musl
 ENTRYPOINT ["/bin/echo", "hello world"]

Dockerfile.django

@@ -7,7 +7,7 @@
 # Using 3.5.7 to avoid compatibility issues that may be introduced by python 3.6 and 3.7.
 # Please upgrade before end-of-life in september 2020!
 # Ref: https://devguide.python.org/#branchstatus
-FROM python:3.5.7-buster@sha256:4598d4365bb7a8628ba840f87406323e699c4da01ae6f926ff33787c63230779 as build
+FROM python:3.5.9-buster@sha256:1baef6be00b82fbd77f1b60ab227a1dbede6f23825ce1b7f1e9c6f7d1469a45c as build
 WORKDIR /app
 RUN \
   apt-get -y update && \
@@ -24,7 +24,7 @@ RUN \
 COPY requirements.txt ./
 RUN pip3 wheel --wheel-dir=/tmp/wheels -r ./requirements.txt
 
-FROM python:3.5.7-slim-buster@sha256:127fee645393d311c7fbc5e8c2e5034f10a4e66b47c9273d4dbe5da2926fc3f2
+FROM python:3.5.9-slim-buster@sha256:dfb042910e4ef352b5c6aa223031ce768f53f4f1aacf95936152e5508162bcb0
 WORKDIR /app
 RUN \
   apt-get -y update && \

Dockerfile.nginx

@@ -3,7 +3,7 @@
 # The code for the build image should be idendical with the code in
 # Dockerfile.django to use the caching mechanism of Docker.
 
-FROM python:3.5.7-buster@sha256:4598d4365bb7a8628ba840f87406323e699c4da01ae6f926ff33787c63230779 as build
+FROM python:3.5.9-buster@sha256:1baef6be00b82fbd77f1b60ab227a1dbede6f23825ce1b7f1e9c6f7d1469a45c as build
 WORKDIR /app
 RUN \
   apt-get -y update && \
@@ -55,7 +55,7 @@ RUN \
   python3 manage.py collectstatic --noinput && \
   true
 
-FROM nginx:1.17.2@sha256:eb3320e2f9ca409b7c0aa71aea3cf7ce7d018f03a372564dbdb023646958770b
+FROM nginx:1.17.7@sha256:89a42c3ba15f09a3fbe39856bddacdf9e94cd03df7403cad4fc105088e268fc9
 COPY --from=collectstatic /app/static/ /usr/share/nginx/html/static/
 COPY wsgi_params nginx/nginx.conf /etc/nginx/
 COPY docker/entrypoint-nginx.sh nginx/*.cer nginx/*.key /