diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 304285e..88220d9 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -31,5 +31,27 @@
           limit: ${apache:server:mpm:prefork:max_clients}
         event:
           enabled: false
+          servers:
+            start: 5
+            spare:
+              min: 25
+              max: 75
+            # Avoid memory leakage by restarting workers every x requests
+            max_requests: 0
+          # Should be 80% of server memory / average memory usage of one worker
+          max_clients: 150
+          limit: 64
+          threads_per_child: 25
         worker:
           enabled: false
+          servers:
+            start: 5
+            spare:
+              min: 25
+              max: 75
+            # Avoid memory leakage by restarting workers every x requests
+            max_requests: 0
+          # Should be 80% of server memory / average memory usage of one worker
+          max_clients: 150
+          limit: 64
+          threads_per_child: 25