diff --git a/.forgejo/workflows/testing.yml b/.forgejo/workflows/testing.yml
index 10158efc7e..483d5d2c14 100644
--- a/.forgejo/workflows/testing.yml
+++ b/.forgejo/workflows/testing.yml
@@ -229,6 +229,7 @@ jobs:
         options: --tmpfs /bitnami/minio/data
       ldap:
         image: data.forgejo.org/oci/forgejo-test-openldap:1
+        options: --memory 500M
       pgsql:
         image: data.forgejo.org/oci/bitnami/postgresql:16
         env: