diff --git a/packages/analytics/lib/index.js b/packages/analytics/lib/index.js
index c4c64c23..fab38ada 100644
--- a/packages/analytics/lib/index.js
+++ b/packages/analytics/lib/index.js
@@ -90,16 +90,6 @@ class FirebaseAnalyticsModule extends FirebaseModule {
       );
     }
 
-    const entries = Object.entries(params);
-
-    for (let i = 0; i < entries.length; i++) {
-      const [key, value] = entries[i];
-
-      if (isObject(value) || isArray(value)) {
-        params[key] = value.toString();
-      }
-    }
-
     return this.native.logEvent(name, params);
   }
 
diff --git a/packages/analytics/lib/index.js.flow b/packages/analytics/lib/index.js.flow
index 08a31a47..cae27139 100644
--- a/packages/analytics/lib/index.js.flow
+++ b/packages/analytics/lib/index.js.flow
@@ -623,7 +623,7 @@ export interface Module extends ReactNativeFirebaseModule {
    * @param name Event name must not conflict with any Reserved Events. 100 characters is the maximum length for param key names.
    * @param params Parameters to be sent and displayed with the event.
    */
-  logEvent(name: string, params?: { [key: string]: string  | number | boolean } | {}): Promise<void>;
+  logEvent(name: string, params?: { [key: string]: any }): Promise<void>;
 
   /**
    * If true, allows the device to collect analytical data and send it to Firebase.