diff --git a/README.md b/README.md
index 7c99852..21526b8 100644
--- a/README.md
+++ b/README.md
@@ -20,9 +20,9 @@ create table proxies (
     exit_ipv6 inet,
     proxy_type text,
     status text default 'unscanned',
-    last_seen timestamp default 'epoch',
-    last_checked timestamp default 'epoch',
-    submitted_at timestamp,
+    last_seen timestamptz default 'epoch',
+    last_checked timestamptz default 'epoch',
+    submitted_at timestamptz,
     comment text,
     num_failures int default 0,
     recheck bool default false