diff --git a/.changeset/clever-waves-judge.md b/.changeset/clever-waves-judge.md
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+---
+'@backstage/plugin-techdocs-react': patch
+'@backstage/plugin-techdocs': patch
+---
+
+Fixed a bug with the TechDocsReaderPageProvider not re-rendering when setShadowDom is called, meaning that the useShadowDom hooks were inconsistent. This issue caused the TextSize addon changes not to reapply during navigation.