diff --git a/lib/src/main/java/org/sonarsource/scanner/lib/ScannerProperties.java b/lib/src/main/java/org/sonarsource/scanner/lib/ScannerProperties.java
index 0f758e20..26217100 100644
--- a/lib/src/main/java/org/sonarsource/scanner/lib/ScannerProperties.java
+++ b/lib/src/main/java/org/sonarsource/scanner/lib/ScannerProperties.java
@@ -84,7 +84,7 @@ private ScannerProperties() {
   public static final String SONAR_SCANNER_KEYSTORE_PASSWORD = "sonar.scanner.keystorePassword";
   public static final String SONAR_SCANNER_TRUSTSTORE_PATH = "sonar.scanner.truststorePath";
   public static final String SONAR_SCANNER_TRUSTSTORE_PASSWORD = "sonar.scanner.truststorePassword";
-
+  public static final String SONAR_SCANNER_SKIP_SYSTEM_TRUSTSTORE = "sonar.scanner.skipSystemTruststore";
   /**
    * Skip analysis.
    */
diff --git a/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/HttpConfig.java b/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/HttpConfig.java
index 0f240070..bb6e8c20 100644
--- a/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/HttpConfig.java
+++ b/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/HttpConfig.java
@@ -39,6 +39,7 @@
 import static java.lang.Integer.parseInt;
 import static java.lang.String.format;
 import static org.apache.commons.lang3.StringUtils.defaultIfBlank;
+import static org.sonarsource.scanner.lib.ScannerProperties.SONAR_SCANNER_SKIP_SYSTEM_TRUSTSTORE;
 import static org.sonarsource.scanner.lib.ScannerProperties.SONAR_SCANNER_CONNECT_TIMEOUT;
 import static org.sonarsource.scanner.lib.ScannerProperties.SONAR_SCANNER_KEYSTORE_PASSWORD;
 import static org.sonarsource.scanner.lib.ScannerProperties.SONAR_SCANNER_KEYSTORE_PATH;
@@ -79,6 +80,7 @@ public class HttpConfig {
   private final String proxyUser;
   private final String proxyPassword;
   private final String userAgent;
+  private final boolean skipSystemTrustMaterial;
 
   public HttpConfig(Map<String, String> bootstrapProperties, Path sonarUserHome) {
     this.webApiBaseUrl = StringUtils.removeEnd(bootstrapProperties.get(ScannerProperties.HOST_URL), "/");
@@ -94,6 +96,7 @@ public HttpConfig(Map<String, String> bootstrapProperties, Path sonarUserHome) {
     this.proxy = loadProxy(bootstrapProperties);
     this.proxyUser = loadProxyUser(bootstrapProperties);
     this.proxyPassword = loadProxyPassword(bootstrapProperties);
+    this.skipSystemTrustMaterial = Boolean.parseBoolean(defaultIfBlank(bootstrapProperties.get(SONAR_SCANNER_SKIP_SYSTEM_TRUSTSTORE), "false"));
   }
 
   private static String loadProxyPassword(Map<String, String> bootstrapProperties) {
@@ -249,4 +252,8 @@ public String getProxyUser() {
   public String getProxyPassword() {
     return proxyPassword;
   }
+
+  public boolean skipSystemTruststore() {
+    return skipSystemTrustMaterial;
+  }
 }
diff --git a/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactory.java b/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactory.java
index 269182f3..c2b5ae0f 100644
--- a/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactory.java
+++ b/lib/src/main/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactory.java
@@ -50,6 +50,7 @@
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static java.util.Arrays.asList;
 import static org.apache.commons.lang3.StringUtils.isNotBlank;
+import static org.sonarsource.scanner.lib.ScannerProperties.SONAR_SCANNER_SKIP_SYSTEM_TRUSTSTORE;
 
 public class OkHttpClientFactory {
 
@@ -72,7 +73,7 @@ private OkHttpClientFactory() {
 
   static OkHttpClient create(HttpConfig httpConfig) {
 
-    var sslContext = configureSsl(httpConfig.getSslConfig());
+    var sslContext = configureSsl(httpConfig.getSslConfig(), httpConfig.skipSystemTruststore());
 
     OkHttpClient.Builder okHttpClientBuilder = new OkHttpClient.Builder()
       .connectTimeout(httpConfig.getConnectTimeout().toMillis(), TimeUnit.MILLISECONDS)
@@ -112,10 +113,14 @@ static OkHttpClient create(HttpConfig httpConfig) {
     return okHttpClientBuilder.build();
   }
 
-  private static SSLFactory configureSsl(SslConfig sslConfig) {
+  private static SSLFactory configureSsl(SslConfig sslConfig, boolean skipSystemTrustMaterial) {
     var sslFactoryBuilder = SSLFactory.builder()
-      .withDefaultTrustMaterial()
-      .withSystemTrustMaterial();
+      .withDefaultTrustMaterial();
+    if (!skipSystemTrustMaterial) {
+      LOG.debug("Loading OS trusted SSL certificates...");
+      LOG.debug("This operation might be slow or even get stuck. You can skip it by passing the scanner property '{}=true'", SONAR_SCANNER_SKIP_SYSTEM_TRUSTSTORE);
+      sslFactoryBuilder.withSystemTrustMaterial();
+    }
     if (System.getProperties().containsKey("javax.net.ssl.keyStore")) {
       sslFactoryBuilder.withSystemPropertyDerivedIdentityMaterial();
     }
diff --git a/lib/src/test/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactoryTest.java b/lib/src/test/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactoryTest.java
index f95ddad6..6fae7bd9 100644
--- a/lib/src/test/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactoryTest.java
+++ b/lib/src/test/java/org/sonarsource/scanner/lib/internal/http/OkHttpClientFactoryTest.java
@@ -45,6 +45,8 @@
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.CsvSource;
 import org.junitpioneer.jupiter.RestoreSystemProperties;
+import org.slf4j.event.Level;
+import testutils.LogTester;
 
 import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
 import static com.github.tomakehurst.wiremock.client.WireMock.anyUrl;
@@ -68,6 +70,9 @@ class OkHttpClientFactoryTest {
 
   private final Map<String, String> bootstrapProperties = new HashMap<>();
 
+  @RegisterExtension
+  private LogTester logTester = new LogTester();
+
   @TempDir
   private Path sonarUserHomeDir;
   private Path sonarUserHome;
@@ -131,6 +136,25 @@ void it_should_fail_if_invalid_keystore_password(String keystore, @Nullable Stri
     }
   }
 
+  @Test
+  void should_load_os_certificates_by_default() {
+    logTester.setLevel(Level.DEBUG);
+
+    OkHttpClientFactory.create(new HttpConfig(bootstrapProperties, sonarUserHome));
+
+    assertThat(logTester.logs(Level.DEBUG)).contains("Loading OS trusted SSL certificates...");
+  }
+
+  @Test
+  void should_skip_load_of_os_certificates_if_props_set() {
+    logTester.setLevel(Level.DEBUG);
+    bootstrapProperties.put("sonar.scanner.skipSystemTruststore", "true");
+
+    OkHttpClientFactory.create(new HttpConfig(bootstrapProperties, sonarUserHome));
+
+    assertThat(logTester.logs(Level.DEBUG)).doesNotContain("Loading OS trusted SSL certificates...");
+  }
+
   @Nested
   // Workaround until we move to Java 17+ and can make Wiremock extension static
   @TestInstance(TestInstance.Lifecycle.PER_CLASS)