diff --git a/.changeset/fifty-vans-drum.md b/.changeset/fifty-vans-drum.md
new file mode 100644
index 0000000000..76ad2fa8df
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+++ b/.changeset/fifty-vans-drum.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-tech-radar': patch
+---
+
+Update tech-radar documentation on how to use an external json datasource with dates.