diff --git a/src/core/WakaTimeCore.ts b/src/core/WakaTimeCore.ts
index 61fd968..4575e3b 100644
--- a/src/core/WakaTimeCore.ts
+++ b/src/core/WakaTimeCore.ts
@@ -337,6 +337,7 @@ class WakaTimeCore {
     try {
       const response = await fetch(`${config.heartbeatApiUrl}?api_key=${apiKey}`, {
         body: JSON.stringify(payload),
+        credentials: 'omit',
         method: 'POST',
       });
       await response.json();
diff --git a/src/manifests/chrome.json b/src/manifests/chrome.json
index 2473b33..041b63a 100644
--- a/src/manifests/chrome.json
+++ b/src/manifests/chrome.json
@@ -26,5 +26,5 @@
     "page": "options.html"
   },
   "permissions": ["alarms", "tabs", "storage", "idle"],
-  "version": "3.0.5"
+  "version": "3.0.6"
 }
diff --git a/src/manifests/firefox.json b/src/manifests/firefox.json
index a39c920..2b370bf 100644
--- a/src/manifests/firefox.json
+++ b/src/manifests/firefox.json
@@ -39,5 +39,5 @@
     "storage",
     "idle"
   ],
-  "version": "3.0.5"
+  "version": "3.0.6"
 }