diff --git a/tempest/common/api_version_utils.py b/tempest/common/api_version_utils.py
index c3d977f..7c7e96a 100644
--- a/tempest/common/api_version_utils.py
+++ b/tempest/common/api_version_utils.py
@@ -18,6 +18,9 @@
 from tempest import exceptions
 
 
+LATEST_MICROVERSION = 'latest'
+
+
 class BaseMicroversionTest(object):
     """Mixin class for API microversion test class."""
 
@@ -27,7 +30,7 @@
     # for all microversions. We need to define microversion range
     # (min_microversion, max_microversion) on each test class if necessary.
     min_microversion = None
-    max_microversion = 'latest'
+    max_microversion = LATEST_MICROVERSION
 
 
 def check_skip_with_microversion(test_min_version, test_max_version,