update to stretch

Signed-off-by: Jess Frazelle <me@jessfraz.com>
diff --git a/atom/Dockerfile b/atom/Dockerfile
index 46c3635..e3dc8bf 100644
--- a/atom/Dockerfile
+++ b/atom/Dockerfile
@@ -19,7 +19,7 @@
 #
 
 # Base docker image
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 # Install dependencies
diff --git a/cathode/Dockerfile b/cathode/Dockerfile
index 73d5bf3..790089a 100644
--- a/cathode/Dockerfile
+++ b/cathode/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \
@@ -14,7 +14,7 @@
 	qml-module-qtquick-dialogs \
 	qml-module-qtquick-localstorage \
 	qml-module-qtquick-window2 \
-	--no-install-recommends \ 
+	--no-install-recommends \
 	&& rm -rf /var/lib/apt/lists/*
 
 RUN git clone --recursive https://github.com/Swordfish90/cool-retro-term.git /src
diff --git a/certbot/Dockerfile b/certbot/Dockerfile
index 615a9a8..2d9780f 100644
--- a/certbot/Dockerfile
+++ b/certbot/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \
diff --git a/cheese/Dockerfile b/cheese/Dockerfile
index 870d6da..a226894 100644
--- a/cheese/Dockerfile
+++ b/cheese/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \
diff --git a/chromium/Dockerfile b/chromium/Dockerfile
index eb70789..2f3368c 100644
--- a/chromium/Dockerfile
+++ b/chromium/Dockerfile
@@ -20,7 +20,7 @@
 #		-e DISPLAY=unix$DISPLAY chromium
 
 # Base docker image
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 ADD https://dl.google.com/linux/direct/google-talkplugin_current_amd64.deb /src/google-talkplugin_current_amd64.deb
diff --git a/debootstrap/Dockerfile b/debootstrap/Dockerfile
index 264a550..a8272b3 100644
--- a/debootstrap/Dockerfile
+++ b/debootstrap/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \
diff --git a/evince/Dockerfile b/evince/Dockerfile
index 3c4971e..6acbf16 100644
--- a/evince/Dockerfile
+++ b/evince/Dockerfile
@@ -12,7 +12,7 @@
 #		evince
 #
 
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Christian Koep <christian.koep@fom-net.de>
 
 RUN apt-get -qq update && apt-get install -y \
diff --git a/gcc/Dockerfile b/gcc/Dockerfile
index 8626be6..d1b0c2e 100644
--- a/gcc/Dockerfile
+++ b/gcc/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \
diff --git a/tor-browser/alpha/Dockerfile b/tor-browser/alpha/Dockerfile
index 2bb454c..f444af2 100644
--- a/tor-browser/alpha/Dockerfile
+++ b/tor-browser/alpha/Dockerfile
@@ -5,7 +5,7 @@
 #	-e DISPLAY=unix$DISPLAY \
 #	jess/tor-browser:alpha
 #
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \
diff --git a/tor-browser/hardened/Dockerfile b/tor-browser/hardened/Dockerfile
index 1a46bde..b35b89f 100644
--- a/tor-browser/hardened/Dockerfile
+++ b/tor-browser/hardened/Dockerfile
@@ -5,7 +5,7 @@
 #	-e DISPLAY=unix$DISPLAY \
 #	tor-browser
 #
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Christian Koep <christian.koep@fom-net.de>
 
 RUN apt-get update && apt-get install -y \
diff --git a/tor-browser/stable/Dockerfile b/tor-browser/stable/Dockerfile
index 2b2c2f2..e72f750 100644
--- a/tor-browser/stable/Dockerfile
+++ b/tor-browser/stable/Dockerfile
@@ -5,7 +5,7 @@
 #	-e DISPLAY=unix$DISPLAY \
 #	jess/tor-browser
 #
-FROM debian:jessie
+FROM debian:stretch
 MAINTAINER Jessica Frazelle <jess@docker.com>
 
 RUN apt-get update && apt-get install -y \