diff --git a/Dockerfile b/Dockerfile
index 78718c68d6a8c25f0281ea85bf198fed0561a1f9..748681f8f11772a142e6c68c0f2396d8ba6f060a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM debian:jessie
+FROM debian:stretch
 ENV DEBIAN_FRONTEND noninteractive
 RUN apt-get update && \
-    apt-get install -y unbound unbound-host dnsutils dma bsd-mailx
+    apt-get install -y knot-dnsutils knot-host knot-resolver dma bsd-mailx
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["/bin/bash", "--login"]
diff --git a/entrypoint.sh b/entrypoint.sh
index 4116993c47a148b55e0b393883f07a5d3e8eae5c..9083753042da84f61f7d175b79486767e77b7a70 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
 set -eu
-service unbound start
+service kresd start
 echo 'nameserver 127.0.0.1' > /etc/resolv.conf
 exec $@