diff --git a/.changeset/two-badgers-repeat.md b/.changeset/two-badgers-repeat.md
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+---
+'@rgbpp-sdk/ckb': patch
+---
+
+fix: Update molecule codegen, packing and unpacking
+
+  - Generate molecule code with latest lumos/molecule
+  - Update RGB++ witness and BTC time lock args packing and unpacking