diff --git a/.changeset/flat-lizards-poke.md b/.changeset/flat-lizards-poke.md
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+---
+'@techdocs/cli': patch
+---
+
+Fix proxying to mkdocs
+
+The domain localhost may point to both 127.0.0.1 and ::1, ipv4 and ipv6
+and when node tries to lookup localhost it might prefer ipv6 while mkdocs
+is only listening on ipv4. This tells node-proxy to target the ipv4 address
+instead of relying on localhost hostname lookup.