diff --git a/s3tests_boto3/functional/test_iam.py b/s3tests_boto3/functional/test_iam.py
index 0995f97..fa44357 100644
--- a/s3tests_boto3/functional/test_iam.py
+++ b/s3tests_boto3/functional/test_iam.py
@@ -477,6 +477,7 @@ def test_allow_bucket_actions_in_user_policy():
 
 @pytest.mark.user_policy
 @pytest.mark.test_of_iam
+@pytest.mark.fails_on_dbstore
 def test_deny_bucket_actions_in_user_policy():
     client = get_iam_client()
     s3_client = get_alt_client()
@@ -551,6 +552,7 @@ def test_allow_object_actions_in_user_policy():
 
 @pytest.mark.user_policy
 @pytest.mark.test_of_iam
+@pytest.mark.fails_on_dbstore
 def test_deny_object_actions_in_user_policy():
     client = get_iam_client()
     s3_client_alt = get_alt_client()
@@ -625,6 +627,7 @@ def test_allow_multipart_actions_in_user_policy():
 
 @pytest.mark.user_policy
 @pytest.mark.test_of_iam
+@pytest.mark.fails_on_dbstore
 def test_deny_multipart_actions_in_user_policy():
     client = get_iam_client()
     s3_client = get_alt_client()
@@ -667,6 +670,7 @@ def test_deny_multipart_actions_in_user_policy():
 
 @pytest.mark.user_policy
 @pytest.mark.test_of_iam
+@pytest.mark.fails_on_dbstore
 def test_allow_tagging_actions_in_user_policy():
     client = get_iam_client()
     s3_client_alt = get_alt_client()
@@ -712,6 +716,7 @@ def test_allow_tagging_actions_in_user_policy():
 
 @pytest.mark.user_policy
 @pytest.mark.test_of_iam
+@pytest.mark.fails_on_dbstore
 def test_deny_tagging_actions_in_user_policy():
     client = get_iam_client()
     s3_client = get_alt_client()
@@ -763,6 +768,7 @@ def test_deny_tagging_actions_in_user_policy():
 
 @pytest.mark.user_policy
 @pytest.mark.test_of_iam
+@pytest.mark.fails_on_dbstore
 def test_verify_conflicting_user_policy_statements():
     s3client = get_alt_client()
     bucket = get_new_bucket(client=s3client)
@@ -794,6 +800,7 @@ def test_verify_conflicting_user_policy_statements():
 
 @pytest.mark.user_policy
 @pytest.mark.test_of_iam
+@pytest.mark.fails_on_dbstore
 def test_verify_conflicting_user_policies():
     s3client = get_alt_client()
     bucket = get_new_bucket(client=s3client)