diff --git a/data/deployments/admin/common.yaml b/data/deployments/admin/common.yaml
index 0d5b81f9..06f1e589 100644
--- a/data/deployments/admin/common.yaml
+++ b/data/deployments/admin/common.yaml
@@ -1,5 +1,6 @@
 swh::deploy::environment: admin
 
 swh::deploy::reverse_proxy::services:
   - hedgedoc
 
+swh::postgresql::shared_buffers: 4GB