diff --git a/RIGS/models.py b/RIGS/models.py
index 81c46dfb..0b7c9d12 100644
--- a/RIGS/models.py
+++ b/RIGS/models.py
@@ -17,6 +17,7 @@ from django.utils import timezone
 from django.utils.functional import cached_property
 from reversion import revisions as reversion
 from reversion.models import Version
+from versioning.versioning import RevisionMixin
 
 
 class Profile(AbstractUser):
@@ -69,39 +70,6 @@ class Profile(AbstractUser):
         return self.name
 
 
-class RevisionMixin:
-    @property
-    def is_first_version(self):
-        versions = Version.objects.get_for_object(self)
-        return len(versions) == 1
-
-    @property
-    def current_version(self):
-        version = Version.objects.get_for_object(self).select_related('revision').first()
-        return version
-
-    @property
-    def last_edited_at(self):
-        version = self.current_version
-        if version is None:
-            return None
-        return version.revision.date_created
-
-    @property
-    def last_edited_by(self):
-        version = self.current_version
-        if version is None:
-            return None
-        return version.revision.user
-
-    @property
-    def current_version_id(self):
-        version = self.current_version
-        if version is None:
-            return None
-        return f"V{version.pk} | R{version.revision.pk}"
-
-
 class Person(models.Model, RevisionMixin):
     name = models.CharField(max_length=50)
     phone = models.CharField(max_length=15, blank=True, default='')
diff --git a/training/models.py b/training/models.py
index 3fe766ba..b60f2320 100644
--- a/training/models.py
+++ b/training/models.py
@@ -1,8 +1,9 @@
-from RIGS.models import RevisionMixin, Profile
+from RIGS.models import Profile
 from reversion import revisions as reversion
 from django.db import models
 from django.urls import reverse
 from django.utils.safestring import mark_safe
+from versioning.versioning import RevisionMixin
 
 
 @reversion.register(for_concrete_model=False, fields=[], follow=["qualifications_obtained", "level_qualifications"])
diff --git a/versioning/versioning.py b/versioning/versioning.py
index ca0b3ef1..343e38ad 100644
--- a/versioning/versioning.py
+++ b/versioning/versioning.py
@@ -36,7 +36,7 @@ class RevisionMixin:
         version = self.current_version
         if version is None:
             return None
-        return "V{0} | R{1}".format(version.pk, version.revision.pk)
+        return f"V{version.pk} | R{version.revision.pk}"
 
     @property
     def date_created(self):