diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 53414bd..d0e7467 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,11 +35,15 @@ jobs:
         env:
           discovery.type: single-node
           plugins.security.disabled: true
+          OPENSEARCH_JAVA_OPTS: -Xms512m -Xmx512m
+          DISABLE_INSTALL_DEMO_CONFIG: true
       opensearch2:
         image: opensearchproject/opensearch:2.13.0
         env:
           discovery.type: single-node
           plugins.security.disabled: true
+          OPENSEARCH_JAVA_OPTS: -Xms512m -Xmx512m
+          DISABLE_INSTALL_DEMO_CONFIG: true
           OPENSEARCH_INITIAL_ADMIN_PASSWORD: temba
 
     steps: