diff --git a/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java b/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java
index 85020c6383..f8b65a9bbc 100644
--- a/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java
+++ b/packages/analytics/android/src/reactnative/java/io/invertase/firebase/analytics/ReactNativeFirebaseAnalyticsModule.java
@@ -211,6 +211,10 @@ private Bundle toBundle(ReadableMap readableMap) {
               double number = itemBundle.getDouble(FirebaseAnalytics.Param.QUANTITY);
               itemBundle.putInt(FirebaseAnalytics.Param.QUANTITY, (int) number);
             }
+            if (itemBundle.containsKey(FirebaseAnalytics.Param.INDEX)) {
+              double number = itemBundle.getDouble(FirebaseAnalytics.Param.INDEX);
+              itemBundle.putLong(FirebaseAnalytics.Param.INDEX, (long) number);
+            }
             validBundles.add(itemBundle);
           }
         }
diff --git a/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m b/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m
index afb9d4f2a2..b4f65fbf3c 100644
--- a/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m
+++ b/packages/analytics/ios/RNFBAnalytics/RNFBAnalyticsModule.m
@@ -271,6 +271,9 @@ - (NSDictionary *)cleanJavascriptParams:(NSDictionary *)params {
           if (item[kFIRParameterQuantity]) {
             item[kFIRParameterQuantity] = @([item[kFIRParameterQuantity] integerValue]);
           }
+          if (item[kFIRParameterIndex]) {
+            item[kFIRParameterIndex] = @([item[kFIRParameterIndex] integerValue]);
+          }
           [newItems addObject:[item copy]];
         }];
     newParams[kFIRParameterItems] = [newItems copy];