diff --git a/data/deployments/staging/common.yaml b/data/deployments/staging/common.yaml
--- a/data/deployments/staging/common.yaml
+++ b/data/deployments/staging/common.yaml
@@ -256,7 +256,7 @@
 elasticsearch::config::cluster::initial_master_nodes:
   - search-esnode0
 
-elasticsearch::jvm_options::heap_size: 8g
+elasticsearch::jvm_options::heap_size: 16g
 elasticsearch::config::prometheus::indices: true
 
 swh::elasticsearch::nodes: