diff --git a/server/src/scripts/delete-memberships-of-deleted-users.js b/server/src/scripts/delete-memberships-of-deleted-users.js
new file mode 100644
index 000000000..73542c350
--- /dev/null
+++ b/server/src/scripts/delete-memberships-of-deleted-users.js
@@ -0,0 +1,17 @@
+// @flow
+
+import { dbQuery, SQL } from '../database/database';
+import { main } from './utils';
+
+async function deleteMemberships() {
+  const query = SQL`
+    DELETE m
+    FROM memberships m 
+    LEFT JOIN users u ON u.id = m.user
+    WHERE m.role = -1 AND u.id IS NULL
+  `;
+
+  await dbQuery(query);
+}
+
+main([deleteMemberships]);
diff --git a/server/src/scripts/utils.js b/server/src/scripts/utils.js
index 4a9062abc..33b91c986 100644
--- a/server/src/scripts/utils.js
+++ b/server/src/scripts/utils.js
@@ -1,14 +1,26 @@
 // @flow
 
 import { getPool } from '../database/database';
 import { endFirebase, endAPNs } from '../push/utils';
 import { publisher } from '../socket/redis';
 
 function endScript() {
   getPool().end();
   publisher.end();
   endFirebase();
   endAPNs();
 }
 
-export { endScript };
+async function main(functions: $ReadOnlyArray<() => Promise<mixed>>) {
+  try {
+    for (const f of functions) {
+      await f();
+    }
+  } catch (e) {
+    console.warn(e);
+  } finally {
+    endScript();
+  }
+}
+
+export { endScript, main };