diff --git a/backend/molgenis-emx2-webapi/src/test/java/org.molgenis.emx2.web/WebApiSmokeTests.java b/backend/molgenis-emx2-webapi/src/test/java/org.molgenis.emx2.web/WebApiSmokeTests.java
index 8f7f90524a..b39131d7d2 100644
--- a/backend/molgenis-emx2-webapi/src/test/java/org.molgenis.emx2.web/WebApiSmokeTests.java
+++ b/backend/molgenis-emx2-webapi/src/test/java/org.molgenis.emx2.web/WebApiSmokeTests.java
@@ -1288,6 +1288,8 @@ public void testScriptScheduling() throws JsonProcessingException, InterruptedEx
   }
 
   @Test
+  @Disabled("unstable; fails on CI around 50% of the time")
+  // todo update / rewrite test to be more stable in CI env
   public void testExecuteSubtaskInScriptTask()
       throws JsonProcessingException, InterruptedException {
     String parentJobName = "parentJobTest";