diff --git a/designer/server/src/test/scala/pl/touk/nussknacker/test/base/it/NuResourcesTest.scala b/designer/server/src/test/scala/pl/touk/nussknacker/test/base/it/NuResourcesTest.scala
index 49bca689f65..4e7e42fc74d 100644
--- a/designer/server/src/test/scala/pl/touk/nussknacker/test/base/it/NuResourcesTest.scala
+++ b/designer/server/src/test/scala/pl/touk/nussknacker/test/base/it/NuResourcesTest.scala
@@ -470,7 +470,10 @@ trait NuResourcesTest
         forwardedUserName = None
       )
     for {
-      _  <- dbioRunner.runInTransaction(writeProcessRepository.saveNewProcess(action))
+      // FIXME: Using method `runInSerializableTransactionWithRetry` is a workaround for problem with flaky tests
+      // (some tests failed with [java.sql.SQLTransactionRollbackException: transaction rollback: serialization failure])
+      // the underlying cause of that errors needs investigating
+      _  <- dbioRunner.runInSerializableTransactionWithRetry(writeProcessRepository.saveNewProcess(action))
       id <- futureFetchingScenarioRepository.fetchProcessId(processName).map(_.get)
     } yield id
   }
diff --git a/designer/server/src/test/scala/pl/touk/nussknacker/test/utils/domain/ScenarioHelper.scala b/designer/server/src/test/scala/pl/touk/nussknacker/test/utils/domain/ScenarioHelper.scala
index 34507b6dee2..734e25f923e 100644
--- a/designer/server/src/test/scala/pl/touk/nussknacker/test/utils/domain/ScenarioHelper.scala
+++ b/designer/server/src/test/scala/pl/touk/nussknacker/test/utils/domain/ScenarioHelper.scala
@@ -190,7 +190,10 @@ private[test] class ScenarioHelper(dbRef: DbRef, clock: Clock, designerConfig: C
       forwardedUserName = None
     )
     for {
-      _  <- dbioRunner.runInTransaction(writeScenarioRepository.saveNewProcess(action))
+      // FIXME: Using method `runInSerializableTransactionWithRetry` is a workaround for problem with flaky tests
+      // (some tests failed with [java.sql.SQLTransactionRollbackException: transaction rollback: serialization failure])
+      // the underlying cause of that errors needs investigating
+      _  <- dbioRunner.runInSerializableTransactionWithRetry(writeScenarioRepository.saveNewProcess(action))
       id <- futureFetchingScenarioRepository.fetchProcessId(scenarioName).map(_.get)
     } yield id
   }