diff --git a/normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/ApolloStore.kt b/normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/ApolloStore.kt
index 5a8df39a..2d9e1a21 100644
--- a/normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/ApolloStore.kt
+++ b/normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/ApolloStore.kt
@@ -290,7 +290,7 @@ private fun Any?.toExternal(): Any? {
     is Int -> this
     is Long -> this
     is Double -> this
-    is JsonNumber -> this
+    is JsonNumber -> this.value
     is CacheKey -> this.serialize()
     is List<*> -> {
       map { it.toExternal() }