diff --git a/4-Infrastructure/shim/rrc_bosonic_db_buffer.py b/4-Infrastructure/shim/rrc_bosonic_db_buffer.py
index 4a9a6d2d..19081ced 100644
--- a/4-Infrastructure/shim/rrc_bosonic_db_buffer.py
+++ b/4-Infrastructure/shim/rrc_bosonic_db_buffer.py
@@ -259,6 +259,10 @@ class AsyncDatabaseBuffer:
             self.conn.commit()
         except Exception as e:
             self.conn.rollback()
+            # Catch duplicate content hash violations and skip them cleanly as successful dedups
+            if e.__class__.__name__ == "UniqueViolation" and "ene_pkg_hash_idx" in str(e):
+                log.info("Deduplication filter triggered: record with identical content_hash already exists. Skipping.")
+                return
             raise e
         finally:
             cur.close()