diff --git a/migrations/development/20230329064016-delete-course-contributor.sql b/migrations/development/20230329064016-delete-course-contributor.sql
new file mode 100644
index 0000000000000000000000000000000000000000..d3f391c45f617508e4711d3500a9faad6b25d9b2
--- /dev/null
+++ b/migrations/development/20230329064016-delete-course-contributor.sql
@@ -0,0 +1,43 @@
+
+-- +migrate Up
+ALTER TABLE material
+    DROP CONSTRAINT IF EXISTS  material_course_id_creator_email_fkey;
+ALTER TABLE quiz
+    DROP CONSTRAINT IF EXISTS quiz_course_id_creator_email_fkey;
+
+DROP TABLE IF EXISTS course_contributor;
+
+ALTER TABLE material
+    ADD FOREIGN KEY (creator_email) REFERENCES public."user"(email);
+
+ALTER TABLE quiz
+    ADD FOREIGN KEY (creator_email) REFERENCES public."user"(email);
+
+
+-- +migrate Down
+
+ALTER TABLE material
+    DROP CONSTRAINT IF EXISTS  material_creator_email_fkey;
+
+ALTER TABLE quiz
+    DROP CONSTRAINT IF EXISTS quiz_creator_email_fkey;
+
+CREATE TABLE public."course_contributor" (
+  course_id     varchar(30) NOT NULL,
+  email         varchar(100) NOT NULL,
+  PRIMARY KEY (course_id, email),
+  FOREIGN KEY (course_id)
+    REFERENCES public."course"(id)
+    ON UPDATE CASCADE ON DELETE CASCADE,
+  FOREIGN KEY (email) REFERENCES public."user"(email) ON DELETE CASCADE
+);
+
+ALTER TABLE material
+    ADD FOREIGN KEY (course_id, creator_email)
+    REFERENCES public."course_contributor"(course_id, email)
+    ON DELETE CASCADE ON UPDATE CASCADE;
+
+ALTER TABLE quiz
+    ADD   FOREIGN KEY (course_id, creator_email)
+    REFERENCES public."course_contributor"(course_id, email)
+    ON DELETE CASCADE ON UPDATE CASCADE;