diff --git a/common/test/acceptance/tests/discussion/test_cohort_management.py b/common/test/acceptance/tests/discussion/test_cohort_management.py
index fd960695da3231e293a51741cacb01df1f11cc5b..b8f4fb30abbf6fb31e432c61aed55788ea338847 100644
--- a/common/test/acceptance/tests/discussion/test_cohort_management.py
+++ b/common/test/acceptance/tests/discussion/test_cohort_management.py
@@ -346,7 +346,7 @@ class CohortConfigurationTest(EventsTestMixin, UniqueCourseTest, CohortTestMixin
         Then the cohort has 1 user
         And appropriate events have been emitted
         """
-        cohort_name = str(uuid.uuid4().get_hex()[0:20])
+        cohort_name = str(uuid.uuid4().hex[0:20])
         self._verify_cohort_settings(cohort_name=cohort_name, assignment_type=None)
 
     def test_add_new_cohort_with_manual_assignment_type(self):
@@ -361,7 +361,7 @@ class CohortConfigurationTest(EventsTestMixin, UniqueCourseTest, CohortTestMixin
         Then the cohort has 1 user
         And appropriate events have been emitted
         """
-        cohort_name = str(uuid.uuid4().get_hex()[0:20])
+        cohort_name = str(uuid.uuid4().hex[0:20])
         self._verify_cohort_settings(cohort_name=cohort_name, assignment_type='manual')
 
     def test_add_new_cohort_with_random_assignment_type(self):
@@ -376,7 +376,7 @@ class CohortConfigurationTest(EventsTestMixin, UniqueCourseTest, CohortTestMixin
         Then the cohort has 1 user
         And appropriate events have been emitted
         """
-        cohort_name = str(uuid.uuid4().get_hex()[0:20])
+        cohort_name = str(uuid.uuid4().hex[0:20])
         self._verify_cohort_settings(cohort_name=cohort_name, assignment_type='random')
 
     def test_update_existing_cohort_settings(self):
@@ -396,7 +396,7 @@ class CohortConfigurationTest(EventsTestMixin, UniqueCourseTest, CohortTestMixin
         And cohort with new name is present in cohorts dropdown list
         And cohort assignment type should be "manual"
         """
-        cohort_name = str(uuid.uuid4().get_hex()[0:20])
+        cohort_name = str(uuid.uuid4().hex[0:20])
         new_cohort_name = '{old}__NEW'.format(old=cohort_name)
         self._verify_cohort_settings(
             cohort_name=cohort_name,
@@ -422,7 +422,7 @@ class CohortConfigurationTest(EventsTestMixin, UniqueCourseTest, CohortTestMixin
         And I click on Save button
         Then I should see an error message
         """
-        cohort_name = str(uuid.uuid4().get_hex()[0:20])
+        cohort_name = str(uuid.uuid4().hex[0:20])
         new_cohort_name = ''
         self._verify_cohort_settings(
             cohort_name=cohort_name,
diff --git a/common/test/acceptance/tests/lms/test_lms_course_discovery.py b/common/test/acceptance/tests/lms/test_lms_course_discovery.py
index 903562a2f7369712b796b2cd9129496655bb240a..a1f52df4aa375fd457ab4ee15a32499639f80217 100644
--- a/common/test/acceptance/tests/lms/test_lms_course_discovery.py
+++ b/common/test/acceptance/tests/lms/test_lms_course_discovery.py
@@ -41,7 +41,7 @@ class CourseDiscoveryTest(AcceptanceTest):
 
         for i in range(12):
             org = 'test_org'
-            number = "{}{}".format(str(i), str(uuid.uuid4().get_hex().upper()[0:6]))
+            number = "{}{}".format(str(i), str(uuid.uuid4().hex.upper()[0:6]))
             run = "test_run"
             name = "test course" if i < 10 else "grass is always greener"
             settings = {'enrollment_start': datetime.datetime(1970, 1, 1).isoformat()}
diff --git a/common/test/acceptance/tests/studio/test_studio_course_create.py b/common/test/acceptance/tests/studio/test_studio_course_create.py
index 7df2bd6f03e063a696048f502f6c119dfc057476..75b95774862c20ce89b6b5fc7281f914f5745b64 100644
--- a/common/test/acceptance/tests/studio/test_studio_course_create.py
+++ b/common/test/acceptance/tests/studio/test_studio_course_create.py
@@ -31,7 +31,7 @@ class CreateCourseTest(AcceptanceTest):
         self.dashboard_page = DashboardPage(self.browser)
         self.course_name = "New Course Name"
         self.course_org = "orgX"
-        self.course_number = str(uuid.uuid4().get_hex().upper()[0:6])
+        self.course_number = str(uuid.uuid4().hex.upper()[0:6])
         self.course_run = "2015_T2"
 
     def test_create_course_with_non_existing_org(self):
diff --git a/openedx/core/lib/tests/test_xblock_utils.py b/openedx/core/lib/tests/test_xblock_utils.py
index 1e75368f7d86347bbfdfa77fb1d9758c543fb796..bc910cb6078f0d21f14ce773192c0e04e98c8b55 100644
--- a/openedx/core/lib/tests/test_xblock_utils.py
+++ b/openedx/core/lib/tests/test_xblock_utils.py
@@ -108,7 +108,7 @@ class TestXblockUtils(SharedModuleStoreTestCase):
             frag=fragment,
             context={"wrap_xblock_data": {"custom-attribute": "custom-value"}},
             usage_id_serializer=lambda usage_id: quote_slashes(six.text_type(usage_id)),
-            request_token=uuid.uuid1().get_hex()
+            request_token=uuid.uuid1().hex
         )
         self.assertIsInstance(test_wrap_output, Fragment)
         self.assertIn('xblock-baseview', test_wrap_output.content)