diff --git a/build_database.py b/build_database.py
index 12aa89f..5917a7d 100644
--- a/build_database.py
+++ b/build_database.py
@@ -184,7 +184,7 @@ async def main_with_ctx(ctx, wanted_date):
             for row in tags_reader:
                 tag = Tag(int(row[0]), row[1], int(row[2]), int(row[3]))
                 await ctx.db.execute(
-                    "insert into tags (id, name, category, post_count) values (?, ?, ?, ?)",
+                    "insert into tags (id, name, category, post_count) values (?, ?, ?, ?) on conflict do nothing",
                     (tag.id, tag.name, tag.category, tag.post_count),
                 )
                 processed_count += 1
@@ -262,7 +262,7 @@ async def main_with_ctx(ctx, wanted_date):
                         up_score,
                         down_score,
                         is_rating_locked
-                    ) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)
+                    ) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?) on conflict do nothing
                     """,
                     (
                         post.id,