diff --git a/tracker/tracker-assist/.yarn/install-state.gz b/tracker/tracker-assist/.yarn/install-state.gz
index a6fe4294c..9ef26268b 100644
Binary files a/tracker/tracker-assist/.yarn/install-state.gz and b/tracker/tracker-assist/.yarn/install-state.gz differ
diff --git a/tracker/tracker/.yarn/install-state.gz b/tracker/tracker/.yarn/install-state.gz
index 195bd0d89..c1f9dd9b8 100644
Binary files a/tracker/tracker/.yarn/install-state.gz and b/tracker/tracker/.yarn/install-state.gz differ
diff --git a/tracker/tracker/CHANGELOG.md b/tracker/tracker/CHANGELOG.md
index ef8e97fd4..50166be88 100644
--- a/tracker/tracker/CHANGELOG.md
+++ b/tracker/tracker/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 16.0.2
+
+- fix attributeSender key generation to prevent calling native methods on objects
+
 ## 16.0.1
 
 - drop computing ts digits
diff --git a/tracker/tracker/package.json b/tracker/tracker/package.json
index ea0fbec48..13eab0724 100644
--- a/tracker/tracker/package.json
+++ b/tracker/tracker/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@openreplay/tracker",
   "description": "The OpenReplay tracker main package",
-  "version": "16.0.1",
+  "version": "16.0.2",
   "keywords": [
     "logging",
     "replay"
diff --git a/tracker/tracker/src/main/modules/attributeSender.ts b/tracker/tracker/src/main/modules/attributeSender.ts
index 200de919b..70f7cff43 100644
--- a/tracker/tracker/src/main/modules/attributeSender.ts
+++ b/tracker/tracker/src/main/modules/attributeSender.ts
@@ -15,7 +15,9 @@ export class StringDictionary {
 
   getKey = (str: string): [number, boolean] => {
     let isNew = false
-    if (!this.backDict[str]) {
+    // avoiding potential native object properties
+    const safeKey = `__${str}`
+    if (!this.backDict[safeKey]) {
       isNew = true
       // shaving the first 2 digits of the timestamp (since they are irrelevant for next millennia)
       const shavedTs = Date.now() % 10 ** (13 - 2)
@@ -26,10 +28,10 @@ export class StringDictionary {
       } else {
         this.lastSuffix = 1
       }
-      this.backDict[str] = id
+      this.backDict[safeKey] = id
       this.lastTs = shavedTs
     }
-    return [this.backDict[str], isNew]
+    return [this.backDict[safeKey], isNew]
   }
 }