diff --git a/lists/public-dns-v4/list.json b/lists/public-dns-v4/list.json
index 05183e3..76b17cf 100644
--- a/lists/public-dns-v4/list.json
+++ b/lists/public-dns-v4/list.json
@@ -50217,6 +50217,7 @@
     "99.99.99.193",
     "99.info-pros.com.",
     "99.red-80-58-141.staticip.rima-tde.net.",
+    "9.9.9.9",
     "A-B-C-166.static.isp.telekom.rs.",
     "A091H095.cable.ogaki-tv.ne.jp.",
     "A095H019.cable.ogaki-tv.ne.jp.",
@@ -65995,5 +65996,5 @@
     "domain|ip"
   ],
   "name": "List of known IPv4 public DNS resolvers",
-  "version": 20170212
+  "version": 20171213
 }
diff --git a/lists/whats-my-ip/list.json b/lists/whats-my-ip/list.json
index 45c79b7..0a95df7 100644
--- a/lists/whats-my-ip/list.json
+++ b/lists/whats-my-ip/list.json
@@ -16,6 +16,7 @@
     "api.ipify.org",
     "api.wipmania.com",
     "bearsmyip.com",
+    "checkip.amazonaws.com",
     "checkip.dns.he.net",
     "checkip.dyndns.com",
     "checkip.dyndns.es",
diff --git a/validate_all.sh b/validate_all.sh
index 67a05d3..a5d3cd4 100755
--- a/validate_all.sh
+++ b/validate_all.sh
@@ -12,6 +12,16 @@ if ! [ $diffs -eq 0 ]; then
 	exit 1
 fi
 
+# remove the exec flag on the json files
+find -name "*.json" -exec chmod -x "{}" \;
+
+diffs=`git status --porcelain | wc -l`
+
+if ! [ $diffs -eq 0 ]; then
+    echo "Please make sure you run remove the executable flag on the json files before commiting: find -name "*.json" -exec chmod -x \"{}\" \\;"
+    exit 1
+fi
+
 for dir in lists/*/list.json
 do
   echo -n "${dir}: "