diff --git a/oslo_utils/tests/test_versionutils.py b/oslo_utils/tests/test_versionutils.py
index 7e8b27f0..35c5bcd1 100644
--- a/oslo_utils/tests/test_versionutils.py
+++ b/oslo_utils/tests/test_versionutils.py
@@ -83,3 +83,13 @@ class IsCompatibleTestCase(test_base.BaseTestCase):
     def test_convert_version_to_tuple(self):
         self.assertEqual((6, 7, 0),
                          versionutils.convert_version_to_tuple('6.7.0'))
+        self.assertEqual((6, 7, 0),
+                         versionutils.convert_version_to_tuple('6.7.0a1'))
+        self.assertEqual((6, 7, 0),
+                         versionutils.convert_version_to_tuple('6.7.0alpha1'))
+        self.assertEqual((6, 7, 0),
+                         versionutils.convert_version_to_tuple('6.7.0b1'))
+        self.assertEqual((6, 7, 0),
+                         versionutils.convert_version_to_tuple('6.7.0beta1'))
+        self.assertEqual((6, 7, 0),
+                         versionutils.convert_version_to_tuple('6.7.0rc1'))
diff --git a/oslo_utils/versionutils.py b/oslo_utils/versionutils.py
index 98827002..3c6a86ca 100644
--- a/oslo_utils/versionutils.py
+++ b/oslo_utils/versionutils.py
@@ -20,6 +20,7 @@ Helpers for comparing version strings.
 """
 
 import functools
+import re
 
 import packaging.version
 
@@ -87,4 +88,5 @@ def convert_version_to_tuple(version_str):
 
     .. versionadded:: 2.0
     """
+    version_str = re.sub(r'(\d+)(a|alpha|b|beta|rc)\d+$', '\\1', version_str)
     return tuple(int(part) for part in version_str.split('.'))