diff --git a/plugins/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3BlobContainer.java b/plugins/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3BlobContainer.java
index 401ef0933a847..92050e34a5a62 100644
--- a/plugins/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3BlobContainer.java
+++ b/plugins/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3BlobContainer.java
@@ -96,10 +96,6 @@ public InputStream readBlob(String blobName) throws IOException {
 
     @Override
     public void writeBlob(String blobName, InputStream inputStream, long blobSize) throws IOException {
-        if (blobExists(blobName)) {
-            throw new FileAlreadyExistsException("Blob [" + blobName + "] already exists, cannot overwrite");
-        }
-
         SocketAccess.doPrivilegedIOException(() -> {
             if (blobSize <= blobStore.bufferSizeInBytes()) {
                 executeSingleUpload(blobStore, buildKey(blobName), inputStream, blobSize);
diff --git a/plugins/repository-s3/src/test/java/org/elasticsearch/repositories/s3/S3BlobStoreContainerTests.java b/plugins/repository-s3/src/test/java/org/elasticsearch/repositories/s3/S3BlobStoreContainerTests.java
index 453ef3213f0b6..c760e86d1353f 100644
--- a/plugins/repository-s3/src/test/java/org/elasticsearch/repositories/s3/S3BlobStoreContainerTests.java
+++ b/plugins/repository-s3/src/test/java/org/elasticsearch/repositories/s3/S3BlobStoreContainerTests.java
@@ -64,6 +64,11 @@ protected BlobStore newBlobStore() {
         return randomMockS3BlobStore();
     }
 
+    @Override
+    public void testVerifyOverwriteFails() {
+        assumeFalse("not implemented because of S3's weak consistency model", true);
+    }
+
     public void testExecuteSingleUploadBlobSizeTooLarge() {
         final long blobSize = ByteSizeUnit.GB.toBytes(randomIntBetween(6, 10));
         final S3BlobStore blobStore = mock(S3BlobStore.class);