diff --git a/.changeset/tough-swans-juggle.md b/.changeset/tough-swans-juggle.md
new file mode 100644
index 0000000000..ca9c868e3f
--- /dev/null
+++ b/.changeset/tough-swans-juggle.md
@@ -0,0 +1,5 @@
+---
+"postgraphile": patch
+---
+
+PgLazyJWTPreset: return 401 error when validation of JWT fails.