diff --git a/lib/services/leantime-service.ts b/lib/services/leantime-service.ts
index a263c093..a9a5ab4d 100644
--- a/lib/services/leantime-service.ts
+++ b/lib/services/leantime-service.ts
@@ -45,7 +45,7 @@ export class LeantimeService {
         {
           headers: {
             'Content-Type': 'application/json',
-            'Authorization': `Bearer ${this.apiToken}`
+            'X-API-Key': this.apiToken
           }
         }
       );
@@ -101,7 +101,7 @@ export class LeantimeService {
         {
           headers: {
             'Content-Type': 'multipart/form-data',
-            'Authorization': `Bearer ${this.apiToken}`
+            'X-API-Key': this.apiToken
           }
         }
       );
@@ -167,7 +167,7 @@ export class LeantimeService {
         {
           headers: {
             'Content-Type': 'application/json',
-            'Authorization': `Bearer ${this.apiToken}`
+            'X-API-Key': this.apiToken
           }
         }
       );
@@ -200,7 +200,7 @@ export class LeantimeService {
         {
           headers: {
             'Content-Type': 'application/json',
-            'Authorization': `Bearer ${this.apiToken}`
+            'X-API-Key': this.apiToken
           }
         }
       );
@@ -238,7 +238,7 @@ export class LeantimeService {
         {
           headers: {
             'Content-Type': 'application/json',
-            'Authorization': `Bearer ${this.apiToken}`
+            'X-API-Key': this.apiToken
           }
         }
       );
@@ -277,7 +277,7 @@ export class LeantimeService {
         {
           headers: {
             'Content-Type': 'application/json',
-            'Authorization': `Bearer ${this.apiToken}`
+            'X-API-Key': this.apiToken
           }
         }
       );