diff --git a/docs/src/test/java/org/elasticsearch/smoketest/DocsClientYamlTestSuiteIT.java b/docs/src/test/java/org/elasticsearch/smoketest/DocsClientYamlTestSuiteIT.java
index 0850653cdb06e..8f1fe57d22a95 100644
--- a/docs/src/test/java/org/elasticsearch/smoketest/DocsClientYamlTestSuiteIT.java
+++ b/docs/src/test/java/org/elasticsearch/smoketest/DocsClientYamlTestSuiteIT.java
@@ -59,8 +59,8 @@
 import static java.util.Collections.singletonMap;
 import static org.elasticsearch.common.xcontent.ConstructingObjectParser.constructorArg;
 
-//The default 20 minutes timeout isn't always enough, please do not increase further than 30 before analyzing what makes this suite so slow
-@TimeoutSuite(millis = 30 * TimeUnits.MINUTE)
+//The default 20 minutes timeout isn't always enough, but Darwin CI hosts are incredibly slow...
+@TimeoutSuite(millis = 40 * TimeUnits.MINUTE)
 public class DocsClientYamlTestSuiteIT extends ESClientYamlSuiteTestCase {
 
     public DocsClientYamlTestSuiteIT(@Name("yaml") ClientYamlTestCandidate testCandidate) {
diff --git a/rest-api-spec/src/yamlRestTest/java/org/elasticsearch/test/rest/ClientYamlTestSuiteIT.java b/rest-api-spec/src/yamlRestTest/java/org/elasticsearch/test/rest/ClientYamlTestSuiteIT.java
index 51c102c028a7a..12773cf59e4a2 100644
--- a/rest-api-spec/src/yamlRestTest/java/org/elasticsearch/test/rest/ClientYamlTestSuiteIT.java
+++ b/rest-api-spec/src/yamlRestTest/java/org/elasticsearch/test/rest/ClientYamlTestSuiteIT.java
@@ -21,10 +21,15 @@
 
 import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
 
+import com.carrotsearch.randomizedtesting.annotations.TimeoutSuite;
+import org.apache.lucene.util.TimeUnits;
 import org.elasticsearch.test.rest.yaml.ClientYamlTestCandidate;
 import org.elasticsearch.test.rest.yaml.ESClientYamlSuiteTestCase;
 
 /** Rest integration test. Runs against a cluster started by {@code gradle integTest} */
+
+//The default 20 minutes timeout isn't always enough, but Darwin CI hosts are incredibly slow...
+@TimeoutSuite(millis = 40 * TimeUnits.MINUTE)
 public class ClientYamlTestSuiteIT extends ESClientYamlSuiteTestCase {
     public ClientYamlTestSuiteIT(ClientYamlTestCandidate testCandidate) {
         super(testCandidate);