diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a46acd05..6d5467b4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-python@v2
       with:
-        python-version: '3.x'
+        python-version: '3.11'
     - name: clone esp-idf
       run: |
         python -m pip install --user -r /home/runner/work/esp-at/esp-at/requirements.txt
@@ -581,7 +581,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-python@v2
       with:
-        python-version: '3.x'
+        python-version: '3.8'
     - name: clone esp-idf
       run: |
         python -m pip install --user -r /home/runner/work/esp-at/esp-at/requirements.txt
diff --git a/components/customized_partitions/raw_data/mqtt_ca/mqtt_ca.crt b/components/customized_partitions/raw_data/mqtt_ca/mqtt_ca.crt
index 555be63f..a6f3e92a 100644
--- a/components/customized_partitions/raw_data/mqtt_ca/mqtt_ca.crt
+++ b/components/customized_partitions/raw_data/mqtt_ca/mqtt_ca.crt
@@ -1,19 +1,20 @@
 -----BEGIN CERTIFICATE-----
-MIIDKzCCAhOgAwIBAgIJALucdhOxiHu6MA0GCSqGSIb3DQEBCwUAMDYxCzAJBgNV
-BAYTAkNOMRUwEwYDVQQKDAxFU1BSRVNTSUYgQVQxEDAOBgNVBAMMB1Jvb3QgQ0Ew
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+rqXRfboQnoZsG4q5WTP468SQvvG5
 -----END CERTIFICATE-----
diff --git a/components/customized_partitions/raw_data/mqtt_cert/mqtt_client.crt b/components/customized_partitions/raw_data/mqtt_cert/mqtt_client.crt
index 0ec694ee..8d5b0ebe 100644
--- a/components/customized_partitions/raw_data/mqtt_cert/mqtt_client.crt
+++ b/components/customized_partitions/raw_data/mqtt_cert/mqtt_client.crt
@@ -1,19 +1,20 @@
 -----BEGIN CERTIFICATE-----
-MIIDKTCCAhGgAwIBAgIJAMTR3qEc0i8+MA0GCSqGSIb3DQEBCwUAMDYxCzAJBgNV
-BAYTAkNOMRUwEwYDVQQKDAxFU1BSRVNTSUYgQVQxEDAOBgNVBAMMB1Jvb3QgQ0Ew
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 -----END CERTIFICATE-----
diff --git a/components/customized_partitions/raw_data/mqtt_key/mqtt_client.key b/components/customized_partitions/raw_data/mqtt_key/mqtt_client.key
index 1071fcf6..16aef58e 100644
--- a/components/customized_partitions/raw_data/mqtt_key/mqtt_client.key
+++ b/components/customized_partitions/raw_data/mqtt_key/mqtt_client.key
@@ -1,27 +1,27 @@
 -----BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEA9YLej+tPUzUb3QnWCUPa8gC/wehhQC4T4+Ff7Se/uzmnpdEx
-Yc1HfEbcv9H6BUZFb24nJTqiaoA3Lr+Qz5u+HgKBkB3Cpsv4guQWWQ/o97j1G8S1
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+qfCeBHrnMpRAB2mRBxyrhQwenDQa0mH0b4oMFjgQNpo4aDgrp4j6
 -----END RSA PRIVATE KEY-----