diff --git a/backend/internal/database/migrations/0035_weekly_report.sql b/backend/internal/database/migrations/0035_weekly_report.sql
index be2a2d3..b0cbe82 100644
--- a/backend/internal/database/migrations/0035_weekly_report.sql
+++ b/backend/internal/database/migrations/0035_weekly_report.sql
@@ -1,5 +1,5 @@
 CREATE TABLE IF NOT EXISTS weekly_reports (
-  report_id INTEGER AUTO_INCREMENT UNIQUE,
+  report_id INTEGER PRIMARY KEY AUTOINCREMENT,
   user_id INTEGER NOT NULL,
   project_id INTEGER NOT NULL,
   week INTEGER NOT NULL,
@@ -10,8 +10,8 @@ CREATE TABLE IF NOT EXISTS weekly_reports (
   study_time INTEGER,
   testing_time INTEGER,
   signed_by INTEGER,
+  UNIQUE(user_id, project_id, week),
   FOREIGN KEY (user_id) REFERENCES users(id),
   FOREIGN KEY (project_id) REFERENCES projects(id),
-  FOREIGN KEY (signed_by) REFERENCES users(id),
-  PRIMARY KEY (user_id, project_id, week)
+  FOREIGN KEY (signed_by) REFERENCES users(id)
 );
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