diff --git a/badges.svg b/badges.svg
index a848621f..6946e964 100644
--- a/badges.svg
+++ b/badges.svg
@@ -1,20 +1,20 @@
-<svg width="114.3" height="20" viewBox="0 0 1143 200" xmlns="http://www.w3.org/2000/svg" role="img" aria-label="coverage: 99.14%">
-  <title>coverage: 99.14%</title>
-  <linearGradient id="TKdQZ" x2="0" y2="100%">
+<svg width="114.3" height="20" viewBox="0 0 1143 200" xmlns="http://www.w3.org/2000/svg" role="img" aria-label="coverage: 99.04%">
+  <title>coverage: 99.04%</title>
+  <linearGradient id="JLEaX" x2="0" y2="100%">
     <stop offset="0" stop-opacity=".1" stop-color="#EEE"/>
     <stop offset="1" stop-opacity=".1"/>
   </linearGradient>
-  <mask id="IelGf"><rect width="1143" height="200" rx="30" fill="#FFF"/></mask>
-  <g mask="url(#IelGf)">
+  <mask id="rBNUH"><rect width="1143" height="200" rx="30" fill="#FFF"/></mask>
+  <g mask="url(#rBNUH)">
     <rect width="603" height="200" fill="#555"/>
     <rect width="540" height="200" fill="#97c40f" x="603"/>
-    <rect width="1143" height="200" fill="url(#TKdQZ)"/>
+    <rect width="1143" height="200" fill="url(#JLEaX)"/>
   </g>
   <g aria-hidden="true" fill="#fff" text-anchor="start" font-family="Verdana,DejaVu Sans,sans-serif" font-size="110">
     <text x="60" y="148" textLength="503" fill="#000" opacity="0.25">coverage</text>
     <text x="50" y="138" textLength="503">coverage</text>
-    <text x="658" y="148" textLength="440" fill="#000" opacity="0.25">99.14%</text>
-    <text x="648" y="138" textLength="440">99.14%</text>
+    <text x="658" y="148" textLength="440" fill="#000" opacity="0.25">99.04%</text>
+    <text x="648" y="138" textLength="440">99.04%</text>
   </g>
   
 </svg>
\ No newline at end of file
diff --git a/coverage-summary.json b/coverage-summary.json
index 426b3476..5bb8b5d8 100644
--- a/coverage-summary.json
+++ b/coverage-summary.json
@@ -1,4 +1,4 @@
-{"total": {"lines":{"total":941,"covered":933,"skipped":0,"pct":99.14},"statements":{"total":982,"covered":974,"skipped":0,"pct":99.18},"functions":{"total":216,"covered":214,"skipped":0,"pct":99.07},"branches":{"total":487,"covered":476,"skipped":0,"pct":97.74},"branchesTrue":{"total":0,"covered":0,"skipped":0,"pct":100}}
+{"total": {"lines":{"total":942,"covered":933,"skipped":0,"pct":99.04},"statements":{"total":983,"covered":974,"skipped":0,"pct":99.08},"functions":{"total":216,"covered":214,"skipped":0,"pct":99.07},"branches":{"total":489,"covered":477,"skipped":0,"pct":97.54},"branchesTrue":{"total":0,"covered":0,"skipped":0,"pct":100}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/index.js": {"lines":{"total":12,"covered":12,"skipped":0,"pct":100},"functions":{"total":3,"covered":3,"skipped":0,"pct":100},"statements":{"total":12,"covered":12,"skipped":0,"pct":100},"branches":{"total":2,"covered":2,"skipped":0,"pct":100}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/chain/chainMethod.js": {"lines":{"total":35,"covered":35,"skipped":0,"pct":100},"functions":{"total":10,"covered":10,"skipped":0,"pct":100},"statements":{"total":35,"covered":35,"skipped":0,"pct":100},"branches":{"total":24,"covered":24,"skipped":0,"pct":100}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/chain/index.js": {"lines":{"total":61,"covered":61,"skipped":0,"pct":100},"functions":{"total":13,"covered":13,"skipped":0,"pct":100},"statements":{"total":63,"covered":63,"skipped":0,"pct":100},"branches":{"total":28,"covered":28,"skipped":0,"pct":100}}
@@ -7,7 +7,7 @@
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/bloom.js": {"lines":{"total":25,"covered":25,"skipped":0,"pct":100},"functions":{"total":6,"covered":6,"skipped":0,"pct":100},"statements":{"total":26,"covered":26,"skipped":0,"pct":100},"branches":{"total":24,"covered":24,"skipped":0,"pct":100}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/errors.js": {"lines":{"total":8,"covered":8,"skipped":0,"pct":100},"functions":{"total":5,"covered":5,"skipped":0,"pct":100},"statements":{"total":8,"covered":8,"skipped":0,"pct":100},"branches":{"total":0,"covered":0,"skipped":0,"pct":100}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/formatters.js": {"lines":{"total":20,"covered":20,"skipped":0,"pct":100},"functions":{"total":3,"covered":3,"skipped":0,"pct":100},"statements":{"total":20,"covered":20,"skipped":0,"pct":100},"branches":{"total":8,"covered":8,"skipped":0,"pct":100}}
-,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/httpProvider.js": {"lines":{"total":116,"covered":109,"skipped":0,"pct":93.96},"functions":{"total":25,"covered":23,"skipped":0,"pct":92},"statements":{"total":118,"covered":111,"skipped":0,"pct":94.06},"branches":{"total":67,"covered":61,"skipped":0,"pct":91.04}}
+,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/httpProvider.js": {"lines":{"total":117,"covered":109,"skipped":0,"pct":93.16},"functions":{"total":25,"covered":23,"skipped":0,"pct":92},"statements":{"total":119,"covered":111,"skipped":0,"pct":93.27},"branches":{"total":69,"covered":62,"skipped":0,"pct":89.85}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/keccak.js": {"lines":{"total":14,"covered":14,"skipped":0,"pct":100},"functions":{"total":2,"covered":2,"skipped":0,"pct":100},"statements":{"total":17,"covered":17,"skipped":0,"pct":100},"branches":{"total":2,"covered":2,"skipped":0,"pct":100}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/keyStore.js": {"lines":{"total":38,"covered":38,"skipped":0,"pct":100},"functions":{"total":3,"covered":3,"skipped":0,"pct":100},"statements":{"total":38,"covered":38,"skipped":0,"pct":100},"branches":{"total":20,"covered":20,"skipped":0,"pct":100}}
 ,"/home/runner/work/aelf-web3.js/aelf-web3.js/src/util/merkleTree.js": {"lines":{"total":49,"covered":49,"skipped":0,"pct":100},"functions":{"total":6,"covered":6,"skipped":0,"pct":100},"statements":{"total":53,"covered":53,"skipped":0,"pct":100},"branches":{"total":22,"covered":22,"skipped":0,"pct":100}}