diff --git a/Sources/Amplitude/Amplitude.m b/Sources/Amplitude/Amplitude.m
index a573c501..62d91312 100644
--- a/Sources/Amplitude/Amplitude.m
+++ b/Sources/Amplitude/Amplitude.m
@@ -139,6 +139,7 @@ @implementation Amplitude {
 
     NSString *_serverUrl;
     NSString *_token;
+    NSDictionary *_HTTPAdditionalHeaders;
     AMPPlan *_plan;
     AMPServerZone _serverZone;
     AMPMiddlewareRunner *_middlewareRunner;
@@ -987,6 +988,11 @@ - (void)makeEventUploadPostRequest:(NSString *)url events:(NSString *)events num
         [request setValue:auth forHTTPHeaderField:@"Authorization"];
     }
 
+    if (_HTTPAdditionalHeaders != nil){
+        [_HTTPAdditionalHeaders enumerateKeysAndObjectsUsingBlock:^(id  _Nonnull key, id  _Nonnull obj, BOOL * _Nonnull stop) {
+            [request setValue:obj forHTTPHeaderField:key];
+        }];
+    }
     [request setHTTPBody:postData];
     AMPLITUDE_LOG(@"Events: %@", events);
 
@@ -1448,6 +1454,10 @@ - (void)setBearerToken:(NSString *)token {
     self->_token = token;
 }
 
+- (void)setHTTPAdditionalHeaders: (NSDictionary *)HTTPAdditionalHeaders{
+    self->_HTTPAdditionalHeaders = HTTPAdditionalHeaders;
+}
+
 - (void)updateEventUploadMaxBatchSize:(int)eventUploadMaxBatchSize {
     _eventUploadMaxBatchSize = eventUploadMaxBatchSize;
     _backoffUploadBatchSize = eventUploadMaxBatchSize;
diff --git a/Sources/Amplitude/Public/Amplitude.h b/Sources/Amplitude/Public/Amplitude.h
index f16ad625..4db58519 100644
--- a/Sources/Amplitude/Public/Amplitude.h
+++ b/Sources/Amplitude/Public/Amplitude.h
@@ -651,6 +651,8 @@ typedef void (^AMPInitCompletionBlock)(void);
 
 - (void)setBearerToken:(NSString *)token;
 
+- (void)setHTTPAdditionalHeaders: (NSDictionary *)HTTPAdditionalHeaders;
+
 - (void)setPlan:(AMPPlan *)plan;
 
 /**