diff --git a/.changeset/sharp-wasps-punch.md b/.changeset/sharp-wasps-punch.md
new file mode 100644
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+++ b/.changeset/sharp-wasps-punch.md
@@ -0,0 +1,5 @@
+---
+'@rgbpp-sdk/ckb': minor
+---
+
+refactor: Remove 1CKB from btc time cell capacity