diff --git a/src/main/resources/postgres/config-16gb.yaml b/src/main/resources/postgres/config-16gb.yaml
index fc32eee..30605aa 100644
--- a/src/main/resources/postgres/config-16gb.yaml
+++ b/src/main/resources/postgres/config-16gb.yaml
@@ -8,4 +8,4 @@ data:
   postgresql.conf: |
     max_connections = 1000
     work_mem = 4MB
-    shared_buffers = 512MB
+    shared_buffers = 2048MB
diff --git a/src/main/resources/postgres/config-2gb.yaml b/src/main/resources/postgres/config-2gb.yaml
index 3bcba85..751af1e 100644
--- a/src/main/resources/postgres/config-2gb.yaml
+++ b/src/main/resources/postgres/config-2gb.yaml
@@ -8,4 +8,4 @@ data:
   postgresql.conf: |
     max_connections = 100
     work_mem = 4MB
-    shared_buffers = 128MB
+    shared_buffers = 512MB
diff --git a/src/main/resources/postgres/config-4gb.yaml b/src/main/resources/postgres/config-4gb.yaml
index ec36a3f..27211c0 100644
--- a/src/main/resources/postgres/config-4gb.yaml
+++ b/src/main/resources/postgres/config-4gb.yaml
@@ -8,4 +8,4 @@ data:
   postgresql.conf: |
     max_connections = 500
     work_mem = 2MB
-    shared_buffers = 256MB
+    shared_buffers = 1024MB
diff --git a/src/main/resources/postgres/config-8gb.yaml b/src/main/resources/postgres/config-8gb.yaml
index 4bd9837..43314ad 100644
--- a/src/main/resources/postgres/config-8gb.yaml
+++ b/src/main/resources/postgres/config-8gb.yaml
@@ -8,4 +8,4 @@ data:
   postgresql.conf: |
     max_connections = 700
     work_mem = 3MB
-    shared_buffers = 512MB
+    shared_buffers = 2048MB