diff --git a/server/migrations/20211107021900-missing-cascades.js b/server/migrations/20211107021900-missing-cascades.js
new file mode 100644
index 000000000..bdfe9d7b8
--- /dev/null
+++ b/server/migrations/20211107021900-missing-cascades.js
@@ -0,0 +1,51 @@
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    let tableName, constraintName;
+
+    tableName = "collection_groups";
+    constraintName = "collection_groups_collectionId_fkey";
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}" drop constraint "${constraintName}"`
+    );
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}"
+        add constraint "${constraintName}" foreign key("collectionId") references "collections" ("id")
+        on delete cascade`
+    );
+
+    constraintName = "collection_groups_groupId_fkey";
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}" drop constraint "${constraintName}"`
+    );
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}"
+        add constraint "${constraintName}" foreign key("groupId") references "groups" ("id")
+        on delete cascade`
+    );
+  },
+
+  down: async (queryInterface, Sequelize) => {
+    let tableName, constraintName;
+
+    tableName = "collection_groups";
+    constraintName = "collection_groups_collectionId_fkey";
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}" drop constraint "${constraintName}"`
+    );
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}"
+        add constraint "${constraintName}" foreign key("collectionId") references "collections" ("id")
+        on delete no action`
+    );
+
+    constraintName = "collection_groups_groupId_fkey";
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}" drop constraint "${constraintName}"`
+    );
+    await queryInterface.sequelize.query(
+      `alter table "${tableName}"
+        add constraint "${constraintName}" foreign key("groupId") references "groups" ("id")
+        on delete no action`
+    );
+  },
+};