diff --git a/backend/alembic/versions/211b14ab5a91_refined_answer_improvement.py b/backend/alembic/versions/211b14ab5a91_refined_answer_improvement.py
index 03aaddacc..5009d0f3b 100644
--- a/backend/alembic/versions/211b14ab5a91_refined_answer_improvement.py
+++ b/backend/alembic/versions/211b14ab5a91_refined_answer_improvement.py
@@ -22,8 +22,7 @@ def upgrade() -> None:
         sa.Column(
             "refined_answer_improvement",
             sa.Boolean(),
-            server_default=sa.true(),
-            nullable=False,
+            nullable=True,
         ),
     )
 
diff --git a/backend/onyx/db/models.py b/backend/onyx/db/models.py
index 51694d06b..b90b20f3a 100644
--- a/backend/onyx/db/models.py
+++ b/backend/onyx/db/models.py
@@ -1204,7 +1204,7 @@ class ChatMessage(Base):
         DateTime(timezone=True), server_default=func.now()
     )
 
-    refined_answer_improvement: Mapped[bool] = mapped_column(Boolean, default=True)
+    refined_answer_improvement: Mapped[bool] = mapped_column(Boolean, nullable=True)
 
     chat_session: Mapped[ChatSession] = relationship("ChatSession")
     prompt: Mapped[Optional["Prompt"]] = relationship("Prompt")