diff --git a/analytics/tests/test_counts.py b/analytics/tests/test_counts.py
index 579391ed8b..74e61340e0 100644
--- a/analytics/tests/test_counts.py
+++ b/analytics/tests/test_counts.py
@@ -1325,7 +1325,7 @@ class TestLoggingCountStats(AnalyticsTestCase):
                 "value__sum"
             ],
         )
-        do_activate_user(user)
+        do_activate_user(user, acting_user=None)
         self.assertEqual(
             1,
             RealmCount.objects.filter(property=property, subgroup=False).aggregate(Sum("value"))[
@@ -1659,7 +1659,7 @@ class TestActiveUsersAudit(AnalyticsTestCase):
             "email4", "password", self.default_realm, "full_name", acting_user=None
         )
         do_deactivate_user(user2)
-        do_activate_user(user3)
+        do_activate_user(user3, acting_user=None)
         do_reactivate_user(user4)
         end_time = floor_to_day(timezone_now()) + self.DAY
         do_fill_count_stat_at_hour(self.stat, end_time)
diff --git a/corporate/tests/test_stripe.py b/corporate/tests/test_stripe.py
index 95e7ac9573..48b883d923 100644
--- a/corporate/tests/test_stripe.py
+++ b/corporate/tests/test_stripe.py
@@ -2714,7 +2714,7 @@ class LicenseLedgerTest(StripeTestCase):
         do_deactivate_user(user)
         do_reactivate_user(user)
         # Not a proper use of do_activate_user, but fine for this test
-        do_activate_user(user)
+        do_activate_user(user, acting_user=None)
         ledger_entries = list(
             LicenseLedger.objects.values_list(
                 "is_renewal", "licenses", "licenses_at_next_renewal"
diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index a39f83943f..0d687f2720 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -672,7 +672,7 @@ def do_create_user(
     return user_profile
 
 
-def do_activate_user(user_profile: UserProfile, acting_user: Optional[UserProfile] = None) -> None:
+def do_activate_user(user_profile: UserProfile, *, acting_user: Optional[UserProfile]) -> None:
     user_profile.is_active = True
     user_profile.is_mirror_dummy = False
     user_profile.set_unusable_password()