diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/hermes/reactexecutor/RuntimeConfig.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/hermes/reactexecutor/RuntimeConfig.kt
similarity index 72%
rename from packages/react-native/ReactAndroid/src/main/java/com/facebook/hermes/reactexecutor/RuntimeConfig.java
rename to packages/react-native/ReactAndroid/src/main/java/com/facebook/hermes/reactexecutor/RuntimeConfig.kt
index e032debb5f8..64ef2300e6e 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/hermes/reactexecutor/RuntimeConfig.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/hermes/reactexecutor/RuntimeConfig.kt
@@ -5,9 +5,9 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-package com.facebook.hermes.reactexecutor;
+package com.facebook.hermes.reactexecutor
 
 /** Holds runtime configuration for a Hermes VM instance (master or snapshot). */
-public final class RuntimeConfig {
-  public long heapSizeMB;
+public class RuntimeConfig {
+  public var heapSizeMB: Long = 0L
 }