diff --git a/testing/trino-tests/src/test/java/io/trino/memory/TestMemoryManager.java b/testing/trino-tests/src/test/java/io/trino/memory/TestMemoryManager.java
index cc37342472ab..0b644bb74de8 100644
--- a/testing/trino-tests/src/test/java/io/trino/memory/TestMemoryManager.java
+++ b/testing/trino-tests/src/test/java/io/trino/memory/TestMemoryManager.java
@@ -48,6 +48,7 @@
 import static io.trino.spi.StandardErrorCode.CLUSTER_OUT_OF_MEMORY;
 import static io.trino.testing.TestingSession.testSessionBuilder;
 import static io.trino.testing.assertions.Assert.assertEventually;
+import static java.util.UUID.randomUUID;
 import static java.util.concurrent.Executors.newCachedThreadPool;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static org.assertj.core.api.Assertions.assertThat;
@@ -326,7 +327,7 @@ public void testQueryTotalMemoryLimit()
                 // The user memory enforcement is tested in testQueryTotalMemoryLimit().
                 // Total memory = user memory + revocable memory.
                 .put("spill-enabled", "true")
-                .put("spiller-spill-path", Paths.get(System.getProperty("java.io.tmpdir"), "trino", "spills").toString())
+                .put("spiller-spill-path", Paths.get(System.getProperty("java.io.tmpdir"), "trino", "spills", randomUUID().toString()).toString())
                 .put("spiller-max-used-space-threshold", "1.0")
                 .buildOrThrow();
         try (QueryRunner queryRunner = createQueryRunner(SESSION, properties)) {
diff --git a/testing/trino-tests/src/test/java/io/trino/tests/TestDistributedSpilledQueries.java b/testing/trino-tests/src/test/java/io/trino/tests/TestDistributedSpilledQueries.java
index c61df33dbab3..3036cbbda357 100644
--- a/testing/trino-tests/src/test/java/io/trino/tests/TestDistributedSpilledQueries.java
+++ b/testing/trino-tests/src/test/java/io/trino/tests/TestDistributedSpilledQueries.java
@@ -25,6 +25,7 @@
 
 import static io.trino.plugin.tpch.TpchMetadata.TINY_SCHEMA_NAME;
 import static io.trino.testing.TestingSession.testSessionBuilder;
+import static java.util.UUID.randomUUID;
 import static org.assertj.core.api.Assertions.assertThat;
 
 public class TestDistributedSpilledQueries
@@ -49,7 +50,7 @@ public static DistributedQueryRunner createSpillingQueryRunner()
                 .build();
 
         ImmutableMap<String, String> extraProperties = ImmutableMap.<String, String>builder()
-                .put("spiller-spill-path", Paths.get(System.getProperty("java.io.tmpdir"), "trino", "spills").toString())
+                .put("spiller-spill-path", Paths.get(System.getProperty("java.io.tmpdir"), "trino", "spills", randomUUID().toString()).toString())
                 .put("spiller-max-used-space-threshold", "1.0")
                 .put("memory-revoking-threshold", "0.0") // revoke always
                 .put("memory-revoking-target", "0.0")