diff --git a/packages/ckb-sdk-core/package.json b/packages/ckb-sdk-core/package.json
index 22c5e63a..d8ab699a 100644
--- a/packages/ckb-sdk-core/package.json
+++ b/packages/ckb-sdk-core/package.json
@@ -25,6 +25,11 @@
       "import": "./lib-esm/index.js",
       "require": "./lib/index.js",
       "types": "./lib/index.d.ts"
+    },
+    "./lib/signWitnesses": {
+      "import": "./lib-esm/signWitnesses.js",
+      "require": "./lib/signWitnesses.js",
+      "types": "./lib/signWitnesses.d.ts"
     }
   },
   "publishConfig": {
diff --git a/packages/ckb-sdk-utils/src/index.ts b/packages/ckb-sdk-utils/src/index.ts
index d58bf414..0c4eda04 100644
--- a/packages/ckb-sdk-utils/src/index.ts
+++ b/packages/ckb-sdk-utils/src/index.ts
@@ -18,6 +18,7 @@ export * from './validators.js'
 export * from './epochs.js'
 export * from './sizes.js'
 export * from './occupiedCapacity.js'
+export * from './calculateTransactionFee.js'
 export { ECPair }
 export * as systemScripts from './systemScripts.js'
 export * as reconcilers from './reconcilers/index.js'