diff --git a/paperwork/models.py b/paperwork/models.py
index 0c337cb..6a4cdf0 100644
--- a/paperwork/models.py
+++ b/paperwork/models.py
@@ -2,7 +2,7 @@ import re
 
 from semver import VersionInfo
 from django.db import models
-from django.db.models import OuterRef, Q, Subquery
+from django.db.models import OuterRef, Q, ExpressionWrapper, Subquery
 from django.core.validators import RegexValidator
 
 from membershipworks.models import Member, Flag as MembershipWorksFlag
@@ -110,9 +110,15 @@ class CertificationVersionManager(models.Manager):
         qs = super().get_queryset()
         latest = qs.filter(definition__pk=OuterRef("definition__pk")).reverse()
         return qs.annotate(
-            is_latest=Q(pk=Subquery(latest.values("pk")[:1])),
+            is_latest=ExpressionWrapper(
+                Q(pk=Subquery(latest.values("pk")[:1])),
+                output_field=models.BooleanField(),
+            ),
             # TODO: should do a more correct comparison than just major version
-            is_current=Q(major=Subquery(latest.values("major")[:1])),
+            is_current=ExpressionWrapper(
+                Q(major=Subquery(latest.values("major")[:1])),
+                output_field=models.BooleanField(),
+            ),
         )