diff --git a/.changeset/sixty-fishes-flow.md b/.changeset/sixty-fishes-flow.md
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+---
+'@astrojs/react': minor
+'astro': minor
+---
+
+Changes the generated URL query param from `_astroAction` to `_action` when submitting a form using Actions. This avoids leaking the framework name into the URL bar, which may be considered a security issue.