diff --git a/packages/jest-snapshot/src/utils.ts b/packages/jest-snapshot/src/utils.ts
index b3500a59bd47..8450f580f55a 100644
--- a/packages/jest-snapshot/src/utils.ts
+++ b/packages/jest-snapshot/src/utils.ts
@@ -189,7 +189,7 @@ const deepMergeArray = (target: Array<any>, source: Array<any>) => {
     if (Array.isArray(target[index])) {
       // Target is an array
       mergedOutput[index] = deepMergeArray(target[index], sourceElement);
-    } else if (targetElementType === 'object') {
+    } else if (isObject(targetElementType)) {
       // Target is a (non-array) object - recursively merge
       mergedOutput[index] = deepMerge(target[index], sourceElement);
     } else {