diff --git a/.changeset/agui-core-interop-ai.md b/.changeset/agui-core-interop-ai.md
index 95b5b76e17..e34af2aa87 100644
--- a/.changeset/agui-core-interop-ai.md
+++ b/.changeset/agui-core-interop-ai.md
@@ -1,5 +1,5 @@
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-'@tanstack/ai': major
+'@tanstack/ai': minor
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 **AG-UI core interop — spec-compliant event types.** `StreamChunk` now re-uses `@ag-ui/core`'s `EventType` enum and event shapes directly. Practical changes: