diff --git a/hieradata/hosts/db151.yaml b/hieradata/hosts/db151.yaml
index 80acebbfff..a721567f0f 100644
--- a/hieradata/hosts/db151.yaml
+++ b/hieradata/hosts/db151.yaml
@@ -1,7 +1,7 @@
 users::groups: 'database-admins'
 http_proxy: 'http://bastion.wikitide.net:8080'
 role::db::weekly_misc: []
-mariadb::config::innodb_buffer_pool_size: '30G'
+mariadb::config::innodb_buffer_pool_size: '35G'
 mariadb::version: '10.11'
 role::db::enable_ssl: false
 mariadb::config::server_id: 5
diff --git a/hieradata/hosts/db161.yaml b/hieradata/hosts/db161.yaml
index da329f3d0c..9f916f7471 100644
--- a/hieradata/hosts/db161.yaml
+++ b/hieradata/hosts/db161.yaml
@@ -1,7 +1,7 @@
 users::groups: 'database-admins'
 http_proxy: 'http://bastion.wikitide.net:8080'
 role::db::weekly_misc: []
-mariadb::config::innodb_buffer_pool_size: '30G'
+mariadb::config::innodb_buffer_pool_size: '35G'
 mariadb::version: '10.11'
 role::db::enable_ssl: false
 mariadb::config::server_id: 6
diff --git a/hieradata/hosts/db171.yaml b/hieradata/hosts/db171.yaml
index c5c0a9fbec..112c135406 100644
--- a/hieradata/hosts/db171.yaml
+++ b/hieradata/hosts/db171.yaml
@@ -1,7 +1,7 @@
 users::groups: 'database-admins'
 http_proxy: 'http://bastion.wikitide.net:8080'
 role::db::weekly_misc: ['mhglobal']
-mariadb::config::innodb_buffer_pool_size: '30G'
+mariadb::config::innodb_buffer_pool_size: '35G'
 mariadb::version: '10.11'
 role::db::enable_ssl: false
 mariadb::config::server_id: 7
diff --git a/hieradata/hosts/db181.yaml b/hieradata/hosts/db181.yaml
index 65f4b6d577..7c5ec39993 100644
--- a/hieradata/hosts/db181.yaml
+++ b/hieradata/hosts/db181.yaml
@@ -1,7 +1,7 @@
 users::groups: 'database-admins'
 http_proxy: 'http://bastion.wikitide.net:8080'
 role::db::weekly_misc: []
-mariadb::config::innodb_buffer_pool_size: '30G'
+mariadb::config::innodb_buffer_pool_size: '35G'
 mariadb::version: '10.11'
 role::db::enable_ssl: false
 mariadb::config::server_id: 8