diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 97ba45fd339..bf4a50f24af 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -31,8 +31,8 @@ jobs:
       matrix:
         # TEST_NAME is a dummy variable used to make it easier to read the web interface
         include:
-          - TEST_NAME: "MariaDB 10.6, elasticsearch:7.9.1"
-            ARGS: MYSQL_VER=mariadb:10.6.3 ES_VER=elasticsearch:7.9.1
+          - TEST_NAME: "MariaDB 11.4, elasticsearch:7.9.1"
+            ARGS: MYSQL_VER=mariadb:11.4.3 ES_VER=elasticsearch:7.9.1
           - TEST_NAME: "DIPS"
             ARGS: TEST_HTTPS=No
           - TEST_NAME: "Force DEncode"
diff --git a/integration_tests.py b/integration_tests.py
index 64f9144c8c4..df593e0d662 100755
--- a/integration_tests.py
+++ b/integration_tests.py
@@ -23,8 +23,8 @@
 
 # Editable configuration
 DEFAULT_HOST_OS = "el9"
-DEFAULT_MYSQL_VER = "mysql:8.0.36"
-DEFAULT_ES_VER = "opensearchproject/opensearch:2.11.1"
+DEFAULT_MYSQL_VER = "mysql:8.0.40"
+DEFAULT_ES_VER = "opensearchproject/opensearch:2.18.0"
 DEFAULT_IAM_VER = "indigoiam/iam-login-service:v1.8.0"
 FEATURE_VARIABLES = {
     "DIRACOSVER": "master",
@@ -288,7 +288,8 @@ def prepare_environment(
         subprocess.run(cmd + ["chown", "dirac", "/home/dirac"], check=True)
 
     typer.secho("Creating MySQL user", fg=c.GREEN)
-    cmd = ["docker", "exec", "mysql", "mysql", f"--password={DB_ROOTPWD}", "-e"]
+    mysql_command = "mariadb" if "mariadb" in docker_compose_env["MYSQL_VER"].lower() else "mysql"
+    cmd = ["docker", "exec", "mysql", f"{mysql_command}", f"--password={DB_ROOTPWD}", "-e"]
     # It sometimes takes a while for MySQL to be ready so wait for a while if needed
     for _ in range(10):
         ret = subprocess.run(
@@ -777,6 +778,10 @@ def _make_env(flags):
     env["HOST_OS"] = flags.pop("HOST_OS", DEFAULT_HOST_OS)
     env["CI_REGISTRY_IMAGE"] = flags.pop("CI_REGISTRY_IMAGE", "diracgrid")
     env["MYSQL_VER"] = flags.pop("MYSQL_VER", DEFAULT_MYSQL_VER)
+    if "mariadb" in env["MYSQL_VER"].lower():
+        env["MYSQL_ADMIN_COMMAND"] = "mariadb-admin"
+    else:
+        env["MYSQL_ADMIN_COMMAND"] = "mysqladmin"
     env["ES_VER"] = flags.pop("ES_VER", DEFAULT_ES_VER)
     env["IAM_VER"] = flags.pop("IAM_VER", DEFAULT_IAM_VER)
     if "CVMFS_DIR" not in env or not Path(env["CVMFS_DIR"]).is_dir():
diff --git a/tests/CI/docker-compose.yml b/tests/CI/docker-compose.yml
index d25387abc4c..53ac364667c 100644
--- a/tests/CI/docker-compose.yml
+++ b/tests/CI/docker-compose.yml
@@ -13,7 +13,7 @@ services:
     ports:
       - 3306:3306
     healthcheck:
-      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
+      test: ["CMD", "${MYSQL_ADMIN_COMMAND}", "ping", "-h", "localhost"]
       timeout: 20s
       retries: 10
       start_period: 60s
diff --git a/tests/CI/envs/opensearchproject/opensearch:2.11.1.env b/tests/CI/envs/opensearchproject/opensearch:2.18.0.env
similarity index 90%
rename from tests/CI/envs/opensearchproject/opensearch:2.11.1.env
rename to tests/CI/envs/opensearchproject/opensearch:2.18.0.env
index 0eb9691f87f..1d03b44f366 100644
--- a/tests/CI/envs/opensearchproject/opensearch:2.11.1.env
+++ b/tests/CI/envs/opensearchproject/opensearch:2.18.0.env
@@ -7,3 +7,4 @@ plugins.security.disabled=true
 # Elasticsearch allocates 1GB of memory by default. As resources are limited
 # and elasticsearch performance isn't critical in CI, limit this to 256MB
 OPENSEARCH_JAVA_OPTS=-Xms256m -Xmx256m
+OPENSEARCH_INITIAL_ADMIN_PASSWORD=This_password1#