diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 77e9286307..f95dee00da 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -59,6 +59,7 @@ jobs:
         env:
           POSTGRES_DB: windmill
           POSTGRES_PASSWORD: changeme
+          POSTGRES_INITDB_ARGS: "-c shared_buffers=2GB -c work_mem=32MB -c effective_cache_size=4GB"
         options: >-
           --health-cmd pg_isready --health-interval 10s --health-timeout 5s
           --health-retries 5
@@ -100,6 +101,7 @@ jobs:
         env:
           POSTGRES_DB: windmill
           POSTGRES_PASSWORD: changeme
+          POSTGRES_INITDB_ARGS: "-c shared_buffers=2GB -c work_mem=32MB -c effective_cache_size=4GB"
         options: >-
           --health-cmd pg_isready --health-interval 10s --health-timeout 5s
           --health-retries 5
@@ -175,6 +177,7 @@ jobs:
         env:
           POSTGRES_DB: windmill
           POSTGRES_PASSWORD: changeme
+          POSTGRES_INITDB_ARGS: "-c shared_buffers=2GB -c work_mem=32MB -c effective_cache_size=4GB"
         options: >-
           --health-cmd pg_isready --health-interval 10s --health-timeout 5s
           --health-retries 5