diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 315be2db8..448fa6968 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,6 +15,7 @@ jobs:
         node_version:
           - 14
           - 16
+          - 18
     steps:
       - uses: actions/checkout@v3
       - name: Use Node.js ${{ matrix.node_version }}
diff --git a/test/agent-ca/ca.crt b/test/agent-ca/ca.crt
index a028df6e4..73d484122 100644
--- a/test/agent-ca/ca.crt
+++ b/test/agent-ca/ca.crt
@@ -1,17 +1,22 @@
 -----BEGIN CERTIFICATE-----
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-Y3Rva2l0IENBMB4XDTE4MDgxMzA1NTY1MVoXDTI4MDgxMDA1NTY1MVowFTETMBEG
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+a3TJKDqO74oM
 -----END CERTIFICATE-----
diff --git a/test/agent-ca/localhost.crt b/test/agent-ca/localhost.crt
index cdb87b231..e595886f6 100644
--- a/test/agent-ca/localhost.crt
+++ b/test/agent-ca/localhost.crt
@@ -1,17 +1,20 @@
 -----BEGIN CERTIFICATE-----
-MIICpTCCAY0CCQDUMK5pArmyETANBgkqhkiG9w0BAQUFADAVMRMwEQYDVQQDDApP
-Y3Rva2l0IENBMB4XDTE4MDgxMzA1NTY1NloXDTI4MDgxMDA1NTY1NlowFDESMBAG
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-htR/8Tj7gsEf
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+Q07xci37yxSFgB8Te1c=
 -----END CERTIFICATE-----
diff --git a/test/agent-ca/localhost.key b/test/agent-ca/localhost.key
index 7951044c6..66e50bcb5 100644
--- a/test/agent-ca/localhost.key
+++ b/test/agent-ca/localhost.key
@@ -1,27 +1,28 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEogIBAAKCAQEAt0MeBHqQUzjtXjd9f0YsM1uHzqj+Do7lTygKumE8UrFvxaf6
-OalqUTy+Rq/JIaWa12iIECEzKF4SZC9CUMD/enW/quHar3RdwCenOo1UrwYXDPDE
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-DisxiAEjImWe+f522BaG/aVCl2xgbC1lDaursn3RkdLWzF6UnbW+uHAvFmVGo8Vj
-2/w58HyY0YsnBJjYt2Dfmf9wFTTJXiYaVJ7Jkt1QRaDdq++LJo+tgktbbZZrQ8bg
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-wOn9QYs1EyVK2vAXfBrHftclnTnKlRCE5Ac10J5WT3d0f6Rt6DQ=
------END RSA PRIVATE KEY-----
+-----BEGIN PRIVATE KEY-----
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+UgzM8TxP/eIddEcOObAOcbKW
+-----END PRIVATE KEY-----