diff --git a/build.sh b/build.sh
index 0e2f12a..ed0e828 100755
--- a/build.sh
+++ b/build.sh
@@ -161,7 +161,7 @@ if [ ! -d "$ROOTFS_DIR" ]; then
     --components=main,contrib,non-free               \
     --arch armhf                                     \
     --keyring $KEYS_DIR/raspbian-archive-keyring.gpg \
-    jessie                                           \
+    stretch                                          \
     $ROOTFS_DIR                                      \
     http://mirrordirector.raspbian.org/raspbian/" || rmdir "$ROOTFS_DIR/debootstrap/"
 fi
diff --git a/files/etc/apt/sources.list b/files/etc/apt/sources.list
index e334582..0f89c89 100644
--- a/files/etc/apt/sources.list
+++ b/files/etc/apt/sources.list
@@ -1,2 +1,2 @@
-deb http://mirrordirector.raspbian.org/raspbian jessie main
-deb http://archive.raspberrypi.org/debian       jessie main
+deb http://mirrordirector.raspbian.org/raspbian stretch main
+deb http://archive.raspberrypi.org/debian       stretch main