diff --git a/package.json b/package.json
index bde69532..5e4379f9 100644
--- a/package.json
+++ b/package.json
@@ -56,75 +56,75 @@
   "author": "Klaytn Team",
   "license": "LGPL",
   "dependencies": {
-    "@babel/runtime": "^7.3.1",
+    "@babel/runtime": "7.3.1",
     "@ethersproject/abi": "5.0.7",
-    "@web3-js/scrypt-shim": "^0.1.0",
+    "@web3-js/scrypt-shim": "0.1.0",
     "any-promise": "1.3.0",
-    "bignumber.js": "^8.0.2",
+    "bignumber.js": "8.0.2",
     "bn.js": "4.11.6",
-    "chai": "^4.1.2",
+    "chai": "4.1.2",
     "crypto-browserify": "3.12.0",
-    "dotenv": "^8.2.0",
-    "elliptic": "^6.4.1",
+    "dotenv": "8.2.0",
+    "elliptic": "6.4.1",
     "eth-lib": "0.2.8",
-    "ethers": "^5.0.32",
+    "ethers": "5.0.32",
     "ethjs-unit": "0.1.6",
     "eventemitter3": "4.0.0",
-    "ipfs-http-client-lite": "^0.3.0",
-    "it-each": "^0.4.0",
-    "lodash": "^4.17.15",
-    "mocha": "^8.3.2",
-    "multihashes": "^4.0.2",
-    "node-fetch": "^2.2.0",
+    "ipfs-http-client-lite": "0.3.0",
+    "it-each": "0.4.0",
+    "lodash": "4.17.15",
+    "mocha": "8.3.2",
+    "multihashes": "4.0.2",
+    "node-fetch": "2.2.0",
     "number-to-bn": "1.7.0",
     "oboe": "2.1.3",
     "request": "2.87.0",
-    "requestretry": "^2.0.2",
-    "scrypt-js": "^3.0.1",
+    "requestretry": "2.0.2",
+    "scrypt-js": "3.0.1",
     "semver": "6.2.0",
     "utf8": "2.1.1",
-    "uuid": "^3.0.0",
+    "uuid": "3.0.0",
     "webpack": "4.44.2",
-    "webpack-cli": "^3.3.12",
-    "websocket": "^1.0.31",
-    "xhr2-cookies": "^1.1.0"
+    "webpack-cli": "3.3.12",
+    "websocket": "1.0.31",
+    "xhr2-cookies": "1.1.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.1.2",
-    "@babel/plugin-external-helpers": "^7.0.0",
-    "@babel/plugin-transform-runtime": "^7.1.0",
-    "@babel/preset-env": "^7.3.1",
-    "babel-eslint": "^10.1.0",
-    "babel-plugin-external-helpers": "^6.22.0",
-    "babelrc-rollup": "^3.0.0",
-    "browserify": "^16.2.2",
-    "chai-as-promised": "^7.1.1",
-    "del": "^3.0.0",
-    "eslint": "^7.11.0",
-    "eslint-config-airbnb": "^17.0.0",
-    "eslint-config-google": "^0.14.0",
-    "eslint-config-prettier": "^6.4.0",
-    "eslint-plugin-import": "^2.13.0",
-    "eslint-plugin-jsx-a11y": "^6.1.1",
-    "eslint-plugin-prettier": "^3.1.1",
-    "eslint-plugin-react": "^7.10.0",
-    "exorcist": "^2.0.0",
-    "gulp": "^4.0.0",
-    "gulp-babel": "^8.0.0",
-    "gulp-jshint": "^2.1.0",
-    "gulp-newer": "^1.4.0",
-    "gulp-plumber": "^1.2.0",
-    "gulp-rename": "^1.4.0",
-    "gulp-replace": "^1.0.0",
-    "gulp-streamify": "^1.0.2",
-    "gulp-uglify": "^3.0.1",
-    "jshint": "^2.9.7",
-    "nock": "^10.0.6",
-    "nyc": "^14.1.1",
-    "path": "^0.12.7",
+    "@babel/core": "7.1.2",
+    "@babel/plugin-external-helpers": "7.0.0",
+    "@babel/plugin-transform-runtime": "7.1.0",
+    "@babel/preset-env": "7.3.1",
+    "babel-eslint": "10.1.0",
+    "babel-plugin-external-helpers": "6.22.0",
+    "babelrc-rollup": "3.0.0",
+    "browserify": "16.2.2",
+    "chai-as-promised": "7.1.1",
+    "del": "3.0.0",
+    "eslint": "7.11.0",
+    "eslint-config-airbnb": "17.0.0",
+    "eslint-config-google": "0.14.0",
+    "eslint-config-prettier": "6.4.0",
+    "eslint-plugin-import": "2.13.0",
+    "eslint-plugin-jsx-a11y": "6.1.1",
+    "eslint-plugin-prettier": "3.1.1",
+    "eslint-plugin-react": "7.10.0",
+    "exorcist": "2.0.0",
+    "gulp": "4.0.0",
+    "gulp-babel": "8.0.0",
+    "gulp-jshint": "2.1.0",
+    "gulp-newer": "1.4.0",
+    "gulp-plumber": "1.2.0",
+    "gulp-rename": "1.4.0",
+    "gulp-replace": "1.0.0",
+    "gulp-streamify": "1.0.2",
+    "gulp-uglify": "3.0.1",
+    "jshint": "2.9.7",
+    "nock": "10.0.6",
+    "nyc": "14.1.1",
+    "path": "0.12.7",
     "prettier": "1.18.2",
-    "sinon": "^9.0.0",
-    "sinon-chai": "^3.5.0",
-    "vinyl-source-stream": "^2.0.0"
+    "sinon": "9.0.0",
+    "sinon-chai": "3.5.0",
+    "vinyl-source-stream": "2.0.0"
   }
 }