diff --git a/jams-server/src/main/java/net/jami/jams/server/update/UpdateCheckTask.java b/jams-server/src/main/java/net/jami/jams/server/update/UpdateCheckTask.java
index a89bc34bdbedb250a6eca514ce0575fb8bd39f38..153fa0b9a6a692f088ec71315f83b07e2e1efde8 100644
--- a/jams-server/src/main/java/net/jami/jams/server/update/UpdateCheckTask.java
+++ b/jams-server/src/main/java/net/jami/jams/server/update/UpdateCheckTask.java
@@ -26,7 +26,6 @@ import lombok.extern.slf4j.Slf4j;
 import net.jami.jams.common.serialization.adapters.GsonFactory;
 import net.jami.jams.common.updater.FileDescription;
 import net.jami.jams.common.utils.VersioningUtils;
-import net.jami.jams.common.utils.X509Utils;
 
 import org.apache.http.HttpResponse;
 import org.apache.http.client.HttpClient;
@@ -38,7 +37,6 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
 import java.security.KeyStore;
-import java.security.cert.X509Certificate;
 import java.util.HashMap;
 import java.util.TimerTask;
 
@@ -59,20 +57,8 @@ public class UpdateCheckTask extends TimerTask {
 
     protected UpdateCheckTask() {
         try {
-            InputStream is =
-                    UpdateCheckTask.class.getClassLoader().getResourceAsStream("oem/ca.crt");
-            X509Certificate certificate =
-                    X509Utils.getCertificateFromPEMString(new String(is.readAllBytes()));
-            trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
-            trustStore.load(null, null);
-            trustStore.setCertificateEntry("ca", certificate);
-
-            is = UpdateCheckTask.class.getClassLoader().getResourceAsStream("oem/update.crt");
-            certificate = X509Utils.getCertificateFromPEMString(new String(is.readAllBytes()));
-            trustStore.setCertificateEntry("update", certificate);
-
-            // Inject the SSL Connection here for a first time.
-            sslContext = SSLContexts.custom().loadTrustMaterial(trustStore, null).build();
+            // Load the trust store
+            sslContext = SSLContexts.createSystemDefault();
 
             // read config json
             InputStream input =
diff --git a/jams-server/src/main/java/net/jami/jams/server/update/UpdateDownloader.java b/jams-server/src/main/java/net/jami/jams/server/update/UpdateDownloader.java
index d96eba7a3cae576668c87294f4feab0c4106d3c7..d88944ad838c405e9772aa7a08ac9769fbc9be33 100644
--- a/jams-server/src/main/java/net/jami/jams/server/update/UpdateDownloader.java
+++ b/jams-server/src/main/java/net/jami/jams/server/update/UpdateDownloader.java
@@ -49,7 +49,6 @@ public class UpdateDownloader {
 
     private SSLContext sslContext;
     private static final String KEYSTORE_TYPE = "JKS";
-    private KeyStore trustStore;
     private static volatile String UPDATE_SERVER_URL;
 
     private final HashMap<String, FileDescription> remoteChecksums = new HashMap<>();
@@ -58,22 +57,6 @@ public class UpdateDownloader {
 
     public UpdateDownloader() {
 
-        try {
-            InputStream is =
-                    UpdateCheckTask.class.getClassLoader().getResourceAsStream("oem/ca.crt");
-            X509Certificate certificate =
-                    X509Utils.getCertificateFromPEMString(new String(is.readAllBytes()));
-            trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
-            trustStore.load(null, null);
-            trustStore.setCertificateEntry("ca", certificate);
-
-            is = UpdateDownloader.class.getClassLoader().getResourceAsStream("oem/update.crt");
-            certificate = X509Utils.getCertificateFromPEMString(new String(is.readAllBytes()));
-            trustStore.setCertificateEntry("update", certificate);
-        } catch (Exception e) {
-            log.info("An unexpected error occurred while loading SFL CA: {}", e.getMessage());
-        }
-
         InputStream input = this.getClass().getClassLoader().getResourceAsStream("oem/config.json");
 
         if (input == null) {
@@ -102,11 +85,8 @@ public class UpdateDownloader {
                     JAMSUpdater.privateKey,
                     "".toCharArray(),
                     new Certificate[] {JAMSUpdater.certificate});
-            sslContext =
-                    SSLContexts.custom()
-                            .loadKeyMaterial(ks, "".toCharArray())
-                            .loadTrustMaterial(trustStore, null)
-                            .build();
+            sslContext = SSLContexts.createSystemDefault();
+
         } catch (Exception e) {
             log.warn("An error occurred while downloading the update: " + e);
         }
diff --git a/jams-server/src/main/resources/oem/ca.crt b/jams-server/src/main/resources/oem/ca.crt
deleted file mode 100644
index 4cb1f283a0ddb0489aa35a151b62e0a53cdddd28..0000000000000000000000000000000000000000
--- a/jams-server/src/main/resources/oem/ca.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDZTCCAk2gAwIBAgIUS02g4gL3VQx8eXWEMXZmq1dFm4wwDQYJKoZIhvcNAQEL
-BQAwQjEYMBYGA1UEAwwPSkFNUyBVcGRhdGVzIENBMRkwFwYDVQQKDBBTYXZvaXJG
-YWlyZUxpbnV4MQswCQYDVQQGEwJDQTAeFw0yMDEyMDMxNDA5NThaFw0zMDEyMDEx
-NDA5NThaMEIxGDAWBgNVBAMMD0pBTVMgVXBkYXRlcyBDQTEZMBcGA1UECgwQU2F2
-b2lyRmFpcmVMaW51eDELMAkGA1UEBhMCQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IB
-DwAwggEKAoIBAQCn00GMb4HVpJvedsHXHq94oiaCRpMv8M6pR9Y8CsG15IltIdAr
-/8lawIfeQLlG/tTSX3ClxYvEJ2n1CQuN05yOw9SRceZNO5raba0PE195RLLL2jRl
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-1s+CoTAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQB+jnpJzAkF
-+xznUp9Sp3jwJ33oCAzZ3tYWfpdU1PoRNJGPK9RBeZe/94N+9f1OGtB2LgIHdHZs
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-57w0qGJxRyHbOwN/thnfoTgtw3O0BH7JiwXbx3xI6cmTVXeY+kT8rPuwfGJI7BW6
-HSlflSvyFdPQ
------END CERTIFICATE-----
diff --git a/jams-server/src/main/resources/oem/update.crt b/jams-server/src/main/resources/oem/update.crt
deleted file mode 100644
index 19f0ac6c3fd2eaea6bcfb94b97f114a6e4ffd093..0000000000000000000000000000000000000000
--- a/jams-server/src/main/resources/oem/update.crt
+++ /dev/null
@@ -1,39 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIG4zCCBcugAwIBAgIJALwXQ5qoglNFMA0GCSqGSIb3DQEBCwUAMIG0MQswCQYD
-VQQGEwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEa
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-DTIyMTEwMjAxMzEyOVowaTELMAkGA1UEBhMCQ0ExEDAOBgNVBAgMB1F1w6liZWMx
-EjAQBgNVBAcMCU1vbnRyw6lhbDEfMB0GA1UECgwWTGUgUHJvamV0IELDqWx1Z2Eg
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-p/sjdZcCnhdOE4qCg/30le4T5OFeDM1x/Q1zHeMhfdCROo+dd5ST
------END CERTIFICATE-----
\ No newline at end of file