diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index da9f8938..e3e94a13 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -32,8 +32,8 @@ jobs:
         ports:
           - 9200:9200
 
-      opensearch_2_11:
-        image: opensearchproject/opensearch:2.11.1
+      opensearch_2_19:
+        image: opensearchproject/opensearch:2.19.3
         env:
           cluster.name: stac-cluster
           node.name: os01
@@ -42,12 +42,19 @@ jobs:
           discovery.type: single-node
           http.port: 9202
           http.cors.enabled: true
-          plugins.security.disabled: true
-          plugins.security.ssl.http.enabled: true
+          DISABLE_SECURITY_PLUGIN: true
+          DISABLE_INSTALL_DEMO_CONFIG: true
           OPENSEARCH_JAVA_OPTS: -Xms512m -Xmx512m
           action.destructive_requires_name: false
         ports:
           - 9202:9202
+        options: >-
+          --health-cmd="curl -f http://localhost:9202/_cluster/health || exit 1"
+          --health-interval=10s
+          --health-timeout=5s
+          --health-retries=10
+          --ulimit nofile=65536:65536
+          --ulimit memlock=-1:-1
 
     strategy:
       matrix:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fb8b2a2e..e4f28dd0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Updated
 
 - Updated Elasticsearch version to 8.19.5 in CI/CD test matrix and compose.yml. [#497](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/497)
+- Updated OpenSearch version to 2.19.3 in CI/CD test matrix and compose.yml. [#499](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/499)
+- Updated elasticsearh python library to 8.19.1 in setup.py. [#499](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/499)
 
 ## [v6.5.1] - 2025-09-30
 
diff --git a/compose.yml b/compose.yml
index b694c7e9..5dfa92e9 100644
--- a/compose.yml
+++ b/compose.yml
@@ -84,7 +84,7 @@ services:
 
   opensearch:
     container_name: os-container
-    image: opensearchproject/opensearch:${OPENSEARCH_VERSION:-2.11.1}
+    image: opensearchproject/opensearch:${OPENSEARCH_VERSION:-2.19.3}
     hostname: opensearch
     environment:
       - discovery.type=single-node
diff --git a/stac_fastapi/elasticsearch/setup.py b/stac_fastapi/elasticsearch/setup.py
index 1751df78..a3b16075 100644
--- a/stac_fastapi/elasticsearch/setup.py
+++ b/stac_fastapi/elasticsearch/setup.py
@@ -8,7 +8,7 @@
 install_requires = [
     "stac-fastapi-core==6.5.1",
     "sfeos-helpers==6.5.1",
-    "elasticsearch[async]~=8.18.0",
+    "elasticsearch[async]~=8.19.1",
     "uvicorn~=0.23.0",
     "starlette>=0.35.0,<0.36.0",
 ]