diff --git a/elasticsearch_dsl/document.py b/elasticsearch_dsl/document.py
index 6a3aa2b49..42b9b3fdd 100644
--- a/elasticsearch_dsl/document.py
+++ b/elasticsearch_dsl/document.py
@@ -406,7 +406,7 @@ def update(
             doc_meta["retry_on_conflict"] = retry_on_conflict
 
         # Optimistic concurrency control
-        if "seq_no" in self.meta and "primary_term" in self.meta:
+        if retry_on_conflict in (None, 0) and "seq_no" in self.meta and "primary_term" in self.meta:
             doc_meta["if_seq_no"] = self.meta["seq_no"]
             doc_meta["if_primary_term"] = self.meta["primary_term"]
 
diff --git a/tests/test_integration/test_document.py b/tests/test_integration/test_document.py
index 83932f7e5..fad6efa8f 100644
--- a/tests/test_integration/test_document.py
+++ b/tests/test_integration/test_document.py
@@ -234,6 +234,20 @@ def test_update_script(write_client):
     assert w.views == 47
 
 
+def test_update_retry_on_conflict(write_client):
+    Wiki.init()
+    w = Wiki(owner=User(name="Honza Kral"), _id="elasticsearch-py", views=42)
+    w.save()
+
+    w1 = Wiki.get(id="elasticsearch-py")
+    w2 = Wiki.get(id="elasticsearch-py")
+    w1.update(script="ctx._source.views += params.inc", inc=5, retry_on_conflict=1)
+    w2.update(script="ctx._source.views += params.inc", inc=5, retry_on_conflict=1)
+
+    w = Wiki.get(id="elasticsearch-py")
+    assert w.views == 52
+
+
 def test_save_and_update_return_doc_meta(write_client):
     Wiki.init()
     w = Wiki(owner=User(name="Honza Kral"), _id="elasticsearch-py", views=42)