diff --git a/CHANGES/1986.bugfix b/CHANGES/1986.bugfix
new file mode 100644
index 000000000..a328a78ef
--- /dev/null
+++ b/CHANGES/1986.bugfix
@@ -0,0 +1 @@
+Set `is_highest` to `False` before importing a collection version to prevent conflicts.
diff --git a/pulp_ansible/app/modelresource.py b/pulp_ansible/app/modelresource.py
index 06fd51319..751692308 100644
--- a/pulp_ansible/app/modelresource.py
+++ b/pulp_ansible/app/modelresource.py
@@ -115,6 +115,9 @@ def before_import_row(self, row, **kwargs):
 
         col = Collection.objects.get(name=row["name"], namespace=row["namespace"])
         row["collection"] = str(col.pk)
+        # This field easily produces constraints violations.
+        # But it's neither useful nor correct. It's removed in newer versions anyway.
+        row["is_highest"] = False
 
     def set_up_queryset(self):
         """