diff --git a/.github/workflows/client-test.yml b/.github/workflows/client-test.yml
index 9bba477..571dafc 100644
--- a/.github/workflows/client-test.yml
+++ b/.github/workflows/client-test.yml
@@ -2,7 +2,7 @@ name: '🧪 Test Cloud Client'
 
 on:
   push:
-    branches:    
+    branches:
       - 'main'
     paths:
       - '**.py'
@@ -16,7 +16,7 @@ on:
       - edited
       - reopened
       - synchronize
-    branches:    
+    branches:
       - 'main'
     paths:
       - '**.py'
@@ -24,6 +24,9 @@ on:
       - '.github/workflows/*.json'
       - '!**/README.md'
 
+  schedule:
+    - cron: '0 12 * * *'  # Runs every day at 12 PM UTC
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -89,14 +92,18 @@ jobs:
     - name: '☁️  Connect to IoT cloud (CPython / Key-Cert Auth / Async)'
       env:
         DEVICE_ID: ${{ secrets.DEVICE_ID2 }}
-        SECRET_KEY: ${{ secrets.SECRET_KEY }}
       run: |
         python tests/ci.py --file-auth
 
+    - name: '☁️  Connect to IoT cloud (CPython / Key-Cert Auth / CADATA / Async)'
+      env:
+        DEVICE_ID: ${{ secrets.DEVICE_ID2 }}
+      run: |
+        python tests/ci.py --file-auth --ca-data
+
     - name: '☁️  Connect to IoT cloud (CPython / Crypto Auth / Async)'
       env:
         DEVICE_ID: ${{ secrets.DEVICE_ID2 }}
-        SECRET_KEY: ${{ secrets.SECRET_KEY }}
       run: |
         export SOFTHSM2_CONF="${HOME}/softhsm/tokens/softhsm2.conf"
         python tests/ci.py --crypto-device
@@ -122,7 +129,6 @@ jobs:
     - name: '☁️  Connect to IoT cloud (MicroPython / Key-Cert Auth / Async)'
       env:
         DEVICE_ID: ${{ secrets.DEVICE_ID2 }}
-        SECRET_KEY: ${{ secrets.SECRET_KEY }}
       run: |
         export PATH="${HOME}/cache/bin:${PATH}"
         micropython -c "import sys; print(sys.path)"
diff --git a/tests/ci.py b/tests/ci.py
index bb090ad..17892e2 100644
--- a/tests/ci.py
+++ b/tests/ci.py
@@ -8,6 +8,7 @@
 import asyncio
 from arduino_iot_cloud import ArduinoCloudClient
 from arduino_iot_cloud import Task
+from arduino_iot_cloud import CADATA # noqa
 import argparse
 
 
@@ -25,7 +26,7 @@ def on_value_changed(client, value):
 def wdt_task(client, args, ts=[None]):
     if ts[0] is None:
         ts[0] = time.time()
-    if time.time() - ts[0] > 10:
+    if time.time() - ts[0] > 20:
         loop = asyncio.get_event_loop()
         loop.set_exception_handler(exception_handler)
         logging.error("Timeout waiting for variable")
@@ -47,6 +48,9 @@ def wdt_task(client, args, ts=[None]):
     parser.add_argument(
         "-f", "--file-auth", action="store_true", help="Use key/cert files"
     )
+    parser.add_argument(
+        "-ca", "--ca-data", action="store_true", help="Use embedded CADATA"
+    )
     parser.add_argument(
         "-s", "--sync", action="store_true", help="Run in synchronous mode"
     )
@@ -76,12 +80,14 @@ def wdt_task(client, args, ts=[None]):
     elif args.file_auth:
         import ssl
         fmt = "der" if sys.implementation.name == "micropython" else "pem"
+        ca_key = "cadata" if args.ca_data else "cafile"
+        ca_val = CADATA if args.ca_data else f"ca-root.{fmt}"
         client = ArduinoCloudClient(
             device_id=os.getenv("DEVICE_ID"),
             ssl_params={
                 "keyfile": f"key.{fmt}",
                 "certfile": f"cert.{fmt}",
-                "ca_certs": f"ca-root.{fmt}",
+                ca_key: ca_val,
                 "cert_reqs": ssl.CERT_REQUIRED,
             },
             sync_mode=args.sync,
@@ -95,7 +101,7 @@ def wdt_task(client, args, ts=[None]):
                 "use_hsm": True,
                 "keyfile": "pkcs11:token=arduino",
                 "certfile": "pkcs11:token=arduino",
-                "ca_certs": "ca-root.pem",
+                "cafile": "ca-root.pem",
                 "cert_reqs": ssl.CERT_REQUIRED,
                 "engine_path": "/lib/x86_64-linux-gnu/engines-3/libpkcs11.so",
                 "module_path": "/lib/x86_64-linux-gnu/softhsm/libsofthsm2.so",