diff --git a/tests/foreman/longrun/test_inc_updates.py b/tests/foreman/longrun/test_inc_updates.py
index 3f00f09662e..b4a0d2cfccd 100644
--- a/tests/foreman/longrun/test_inc_updates.py
+++ b/tests/foreman/longrun/test_inc_updates.py
@@ -14,7 +14,6 @@
 
 from datetime import datetime, timedelta
 
-from nailgun import entities
 import pytest
 
 from robottelo.config import settings
@@ -33,10 +32,10 @@
 
 
 @pytest.fixture(scope='module')
-def module_lce_library(module_sca_manifest_org):
+def module_lce_library(module_target_sat, module_sca_manifest_org):
     """Returns the Library lifecycle environment from chosen organization"""
     return (
-        entities.LifecycleEnvironment()
+        module_target_sat.api.LifecycleEnvironment()
         .search(
             query={
                 'search': f'name={ENVIRONMENT} and ' f'organization_id={module_sca_manifest_org.id}'
@@ -47,13 +46,15 @@ def module_lce_library(module_sca_manifest_org):
 
 
 @pytest.fixture(scope='module')
-def dev_lce(module_sca_manifest_org):
-    return entities.LifecycleEnvironment(name='DEV', organization=module_sca_manifest_org).create()
+def dev_lce(module_target_sat, module_sca_manifest_org):
+    return module_target_sat.api.LifecycleEnvironment(
+        name='DEV', organization=module_sca_manifest_org
+    ).create()
 
 
 @pytest.fixture(scope='module')
-def qe_lce(module_sca_manifest_org, dev_lce):
-    return entities.LifecycleEnvironment(
+def qe_lce(module_target_sat, module_sca_manifest_org, dev_lce):
+    return module_target_sat.api.LifecycleEnvironment(
         name='QE', prior=dev_lce, organization=module_sca_manifest_org
     ).create()
 
@@ -86,9 +87,9 @@ def custom_repo(module_sca_manifest_org, module_target_sat):
 
 
 @pytest.fixture(scope='module')
-def module_cv(module_sca_manifest_org, sat_client_repo, custom_repo):
+def module_cv(module_target_sat, module_sca_manifest_org, sat_client_repo, custom_repo):
     """Publish both repos into module CV"""
-    module_cv = entities.ContentView(
+    module_cv = module_target_sat.api.ContentView(
         organization=module_sca_manifest_org,
         repository=[sat_client_repo.id, custom_repo.id],
     ).create()
@@ -101,7 +102,7 @@ def module_ak(
     module_sca_manifest_org, module_cv, custom_repo, module_lce_library, module_target_sat
 ):
     """Create a module AK in Library LCE"""
-    ak = entities.ActivationKey(
+    ak = module_target_sat.api.ActivationKey(
         content_view=module_cv,
         environment=module_lce_library,
         organization=module_sca_manifest_org,
@@ -158,7 +159,7 @@ def host(
     )
     # Add filter of type include but do not include anything.
     # this will hide all RPMs from selected erratum before publishing.
-    entities.RPMContentViewFilter(
+    module_target_sat.api.RPMContentViewFilter(
         content_view=module_cv, inclusion=True, name='Include Nothing'
     ).create()
     module_cv.publish()
@@ -166,11 +167,6 @@ def host(
     return rhel7_contenthost_module
 
 
-def get_applicable_errata(repo):
-    """Retrieves applicable errata for the given repo"""
-    return entities.Errata(repository=repo).search(query={'errata_restrict_applicable': True})
-
-
 @pytest.mark.tier4
 @pytest.mark.upgrade
 def test_positive_noapply_api(
@@ -194,8 +190,11 @@ def test_positive_noapply_api(
     cvv = versions[-1].read()
     cvv.promote(data={'environment_ids': dev_lce.id})
 
-    # Get the applicable errata
-    errata_list = get_applicable_errata(custom_repo)
+    # Get the applicable errata for the given repo
+    errata_list = module_target_sat.api.Errata(repository=custom_repo).search(
+        query={'errata_restrict_applicable': True}
+    )
+
     assert len(errata_list) > 0
 
     # Apply incremental update using the first applicable errata
diff --git a/tests/foreman/longrun/test_oscap.py b/tests/foreman/longrun/test_oscap.py
index 28908482e82..d448f8d541d 100644
--- a/tests/foreman/longrun/test_oscap.py
+++ b/tests/foreman/longrun/test_oscap.py
@@ -14,7 +14,6 @@
 
 from broker import Broker
 from fauxfactory import gen_string
-from nailgun import entities
 import pytest
 
 from robottelo.config import settings
@@ -69,15 +68,19 @@ def default_proxy(module_target_sat):
 
 
 @pytest.fixture(scope='module')
-def lifecycle_env(module_org):
+def lifecycle_env(module_target_sat, module_org):
     """Create lifecycle environment"""
-    return entities.LifecycleEnvironment(organization=module_org, name=gen_string('alpha')).create()
+    return module_target_sat.api.LifecycleEnvironment(
+        organization=module_org, name=gen_string('alpha')
+    ).create()
 
 
 @pytest.fixture(scope='module')
-def content_view(module_org):
+def content_view(module_target_sat, module_org):
     """Create content view"""
-    return entities.ContentView(organization=module_org, name=gen_string('alpha')).create()
+    return module_target_sat.api.ContentView(
+        organization=module_org, name=gen_string('alpha')
+    ).create()
 
 
 @pytest.fixture(scope='module', autouse=True)
@@ -90,7 +93,7 @@ def activation_key(module_target_sat, module_org, lifecycle_env, content_view):
     ]
 
     for repo in repo_values:
-        activation_key = entities.ActivationKey(
+        activation_key = module_target_sat.api.ActivationKey(
             name=repo.get('akname'), environment=lifecycle_env, organization=module_org
         ).create()
         # Setup org for a custom repo for RHEL6, RHEL7 and RHEL8.