diff --git a/backend/src/app/migrations.clj b/backend/src/app/migrations.clj
index 4b329d2eb..3f9f032e4 100644
--- a/backend/src/app/migrations.clj
+++ b/backend/src/app/migrations.clj
@@ -163,6 +163,9 @@
 
    {:name "0050-mod-server-prop-table"
     :fn (mg/resource "app/migrations/sql/0050-mod-server-prop-table.sql")}
+
+   {:name "0051-mod-file-library-rel-table"
+    :fn (mg/resource "app/migrations/sql/0051-mod-file-library-rel-table.sql")}
    ])
 
 
diff --git a/backend/src/app/migrations/sql/0051-mod-file-library-rel-table.sql b/backend/src/app/migrations/sql/0051-mod-file-library-rel-table.sql
new file mode 100644
index 000000000..3173c1d58
--- /dev/null
+++ b/backend/src/app/migrations/sql/0051-mod-file-library-rel-table.sql
@@ -0,0 +1,4 @@
+ALTER TABLE file_library_rel
+ DROP CONSTRAINT file_library_rel_library_file_id_fkey,
+  ADD CONSTRAINT file_library_rel_library_file_id_fkey
+         FOREIGN KEY (library_file_id) REFERENCES file(id) ON DELETE CASCADE DEFERRABLE;
diff --git a/backend/src/app/setup/initial_data.clj b/backend/src/app/setup/initial_data.clj
index b7d76a85d..6c8499697 100644
--- a/backend/src/app/setup/initial_data.clj
+++ b/backend/src/app/setup/initial_data.clj
@@ -77,6 +77,8 @@
                       :team-id (:default-team-id profile)
                       :name (:project-name data)}]
 
+         (db/exec-one! conn ["SET CONSTRAINTS ALL DEFERRED"])
+
          (create-project conn project)
          (create-project-role conn {:project-id (:id project)
                                     :profile-id (:id profile)