diff --git a/.eslintrc b/.eslintrc
index 003e714..34f463a 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -8,6 +8,7 @@
   "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
   "ignorePatterns": ["**/*.js"],
   "rules": {
+    "no-prototype-builtins": "off",
     "prefer-arrow-callback": ["warn", { "allowNamedFunctions": true }], // Disallow arrow functions as expressions
     "func-style": ["warn", "declaration", { "allowArrowFunctions": false }], // Disallow the use of function expressions
     "@typescript-eslint/no-floating-promises": "error",
diff --git a/output.csv b/output.csv
deleted file mode 100644
index 469a6a6..0000000
--- a/output.csv
+++ /dev/null
@@ -1,3 +0,0 @@
-assignee,reward,https://pay.ubq.fi?claim=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&network=100,https://pay.ubq.fi?claim=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&network=100,https://pay.ubq.fi?claim=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&network=100
-devpanther,159.15,1,1,0
-pavlovcik,27.3,0,0,1
\ No newline at end of file
diff --git a/output/output.xlsx b/output/output.xlsx
deleted file mode 100644
index 1c19f33..0000000
Binary files a/output/output.xlsx and /dev/null differ
diff --git a/package-lock.json b/package-lock.json
index a303ea9..d4bb978 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,6 +12,7 @@
         "@octokit/types": "^12.4.0",
         "@sinclair/typebox": "^0.32.3",
         "dotenv": "^16.3.1",
+        "json": "^11.0.0",
         "json2csv": "^6.0.0-alpha.2",
         "octokit": "^3.1.2",
         "xlsx": "^0.18.5"
@@ -4640,6 +4641,17 @@
         "js-yaml": "bin/js-yaml.js"
       }
     },
+    "node_modules/json": {
+      "version": "11.0.0",
+      "resolved": "https://registry.npmjs.org/json/-/json-11.0.0.tgz",
+      "integrity": "sha512-N/ITv3Yw9Za8cGxuQqSqrq6RHnlaHWZkAFavcfpH/R52522c26EbihMxnY7A1chxfXJ4d+cEFIsyTgfi9GihrA==",
+      "bin": {
+        "json": "lib/json.js"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/json-buffer": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/json-buffer/-/json-buffer-3.0.1.tgz",
diff --git a/package.json b/package.json
index ff2b1bf..9fa9601 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "@octokit/types": "^12.4.0",
     "@sinclair/typebox": "^0.32.3",
     "dotenv": "^16.3.1",
+    "json": "^11.0.0",
     "json2csv": "^6.0.0-alpha.2",
     "octokit": "^3.1.2",
     "xlsx": "^0.18.5"
diff --git a/src/helpers/calculateReward.ts b/src/helpers/calculateReward.ts
index a29a8ef..b099e27 100644
--- a/src/helpers/calculateReward.ts
+++ b/src/helpers/calculateReward.ts
@@ -1,6 +1,7 @@
 import { UserType } from "../types/github";
 import { getAllIssueComments, getCompletedIssues, getIssueAssignee, parsePermit } from "./issue";
 import { AssigneeRewardMap } from "../types/miscellaneous";
+import { mergeRewards } from "./excel";
 
 export async function parseRewards(owner: string, repo: string, issueNumber: number): Promise<AssigneeRewardMap> {
   const rewardMap: AssigneeRewardMap = {};
@@ -74,7 +75,7 @@ export async function calculateRepoReward(owner: string, repo: string) {
   for (let i = 0; i < issues.length; i++) {
     const issueNumber = issues[i].number;
     const reward = await parseRewards(owner, repo, issueNumber);
-    totalReward = { ...totalReward, ...reward };
+    totalReward = mergeRewards(totalReward, reward);
   }
   return totalReward;
 }
diff --git a/src/helpers/excel.ts b/src/helpers/excel.ts
index adabc41..3577c83 100644
--- a/src/helpers/excel.ts
+++ b/src/helpers/excel.ts
@@ -1,4 +1,5 @@
 import { createWriteStream } from "fs";
+import { AssigneeRewardMap } from "../types/miscellaneous";
 
 function getMaxPermits(data: Record<string, { reward: number; permit: string[] }>): number {
   let maxPermits = 0;
@@ -38,3 +39,31 @@ export async function convertToCSV(data: Record<string, { reward: number; permit
   stream.write(csvString);
   stream.end();
 }
+
+export function mergeRewards(map1: AssigneeRewardMap, map2: AssigneeRewardMap): AssigneeRewardMap {
+  const result: AssigneeRewardMap = {};
+
+  // Merge map1 into the result
+  // eslint-disable-next-line no-prototype-builtins
+  for (const assignee in map1) {
+    if (map1.hasOwnProperty(assignee)) {
+      result[assignee] = {
+        reward: (result[assignee]?.reward || 0) + map1[assignee].reward,
+        permit: (result[assignee]?.permit || []).concat(map1[assignee].permit),
+      };
+    }
+  }
+
+  // Merge map2 into the result
+  // eslint-disable-next-line no-prototype-builtins
+  for (const assignee in map2) {
+    if (map2.hasOwnProperty(assignee)) {
+      result[assignee] = {
+        reward: (result[assignee]?.reward || 0) + map2[assignee].reward,
+        permit: (result[assignee]?.permit || []).concat(map2[assignee].permit),
+      };
+    }
+  }
+
+  return result;
+}
diff --git a/yarn.lock b/yarn.lock
index b7f46a3..ae7f08d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2467,6 +2467,11 @@ json-stringify-safe@^5.0.1:
   resolved "https://registry.npmjs.org/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz"
   integrity sha512-ZClg6AaYvamvYEE82d3Iyd3vSSIjQ+odgjaTzRuO3s7toCdFKczob2i0zCh7JE8kWn17yvAWhUVxvqGwUalsRA==
 
+json@^11.0.0:
+  version "11.0.0"
+  resolved "https://registry.npmjs.org/json/-/json-11.0.0.tgz"
+  integrity sha512-N/ITv3Yw9Za8cGxuQqSqrq6RHnlaHWZkAFavcfpH/R52522c26EbihMxnY7A1chxfXJ4d+cEFIsyTgfi9GihrA==
+
 json2csv@^6.0.0-alpha.2:
   version "6.0.0-alpha.2"
   resolved "https://registry.npmjs.org/json2csv/-/json2csv-6.0.0-alpha.2.tgz"