diff --git a/backend/package.json b/backend/package.json
index c950d0de9..9420a155a 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -60,7 +60,6 @@
     "core": "*",
     "cors": "^2.8.5",
     "database": "*",
-    "dataloader": "^2.2.3",
     "decimal.js-light": "^2.5.1",
     "dotenv": "^10.0.0",
     "esbuild": "^0.25.2",
diff --git a/backend/src/graphql/resolver/ContributionResolver.ts b/backend/src/graphql/resolver/ContributionResolver.ts
index 0882a04bd..9523e3a9b 100644
--- a/backend/src/graphql/resolver/ContributionResolver.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.ts
@@ -27,7 +27,6 @@ import {
   getLastTransaction,
   UserContact,
 } from 'database'
-import DataLoader from 'dataloader'
 import { Decimal } from 'decimal.js-light'
 import { GraphQLResolveInfo } from 'graphql'
 import { getLogger } from 'log4js'
@@ -375,28 +374,32 @@ export class ContributionResolver {
     )
     const result = new ContributionListResult(count, dbContributions)
 
-    const dataLoader = new DataLoader(async (userIds: readonly number[]) => {
-      const uniqueUserIds = new Set<number>()
-      userIds.forEach((userId) => uniqueUserIds.add(userId))
-      const users = await findUserNamesByIds(Array.from(uniqueUserIds))
-      return userIds.map((userId) => users.get(userId))
-    })
+    const uniqueUserIds = new Set<number>()
+    const addIfExist = (userId?: number | null) => {
+      if (userId) {
+        uniqueUserIds.add(userId)
+      }
+    }
+    const getNameById = (userId?: number | null) => {
+      if (userId) {
+        return users.get(userId)
+      }
+      return null
+    }
     for (const contribution of result.contributionList) {
-      if (contribution.confirmedBy) {
-        contribution.confirmedByUserName = await dataLoader.load(contribution.confirmedBy)
-      }
-      if (contribution.updatedBy) {
-        contribution.updatedByUserName = await dataLoader.load(contribution.updatedBy)
-      }
-      if (contribution.moderatorId) {
-        contribution.moderatorUserName = await dataLoader.load(contribution.moderatorId)
-      }
-      if (contribution.deletedBy) {
-        contribution.deletedByUserName = await dataLoader.load(contribution.deletedBy)
-      }
-      if (contribution.deniedBy) {
-        contribution.deniedByUserName = await dataLoader.load(contribution.deniedBy)
-      }
+      addIfExist(contribution.confirmedBy)
+      addIfExist(contribution.updatedBy)
+      addIfExist(contribution.moderatorId)
+      addIfExist(contribution.deletedBy)
+      addIfExist(contribution.deniedBy)
+    }
+    const users = await findUserNamesByIds(Array.from(uniqueUserIds))
+    for (const contribution of result.contributionList) {
+      contribution.confirmedByUserName = getNameById(contribution.confirmedBy)
+      contribution.updatedByUserName = getNameById(contribution.updatedBy)
+      contribution.moderatorUserName = getNameById(contribution.moderatorId)
+      contribution.deletedByUserName = getNameById(contribution.deletedBy)
+      contribution.deniedByUserName = getNameById(contribution.deniedBy)
     }
     return result
   }
diff --git a/bun.lock b/bun.lock
index f6dc312a7..9a4a4c2bb 100644
--- a/bun.lock
+++ b/bun.lock
@@ -122,7 +122,6 @@
         "core": "*",
         "cors": "^2.8.5",
         "database": "*",
-        "dataloader": "^2.2.3",
         "decimal.js-light": "^2.5.1",
         "dotenv": "^10.0.0",
         "esbuild": "^0.25.2",
@@ -1809,8 +1808,6 @@
 
     "database": ["database@workspace:database"],
 
-    "dataloader": ["dataloader@2.2.3", "", {}, "sha512-y2krtASINtPFS1rSDjacrFgn1dcUuoREVabwlOGOe4SdxenREqwjwjElAdwvbGM7kgZz9a3KVicWR7vcz8rnzA=="],
-
     "date-fns": ["date-fns@2.30.0", "", { "dependencies": { "@babel/runtime": "^7.21.0" } }, "sha512-fnULvOpxnC5/Vg3NCiWelDsLiUc9bRwAPs/+LfTLNvetFCtCTN+yQz15C/fs4AwX1R9K5GLtLfn8QW+dWisaAw=="],
 
     "date-format": ["date-format@4.0.14", "", {}, "sha512-39BOQLs9ZjKh0/patS9nrT8wc3ioX3/eA/zgbKNopnF2wCqJEoxywwwElATYvRsXdnOxA/OQeQoFZ3rFjVajhg=="],