diff --git a/test/unit/migration_engine_tests.erl b/test/unit/migration_engine_tests.erl
index 3b2ba66..2708e50 100644
--- a/test/unit/migration_engine_tests.erl
+++ b/test/unit/migration_engine_tests.erl
@@ -3,6 +3,14 @@
 -include("records.hrl").
 
 -define(LOCK_VERSION, "__migration_lock__").
+%% Keep in sync with migration_engine:?ALL_MIGRATIONS (atom → string version).
+-define(ALL_VERSIONS, [
+  "20260501120000_base_schema",
+  "20260504150000_test_migration",
+  "20260716230000_ticket_source_and_hash_index",
+  "20260717180000_stats_counters",
+  "20260717190000_admin_stats_indexes"
+]).
 
 setup() ->
   mnesia:stop(),
@@ -37,9 +45,9 @@ test_ensure_applied() ->
   Status = migration_engine:status(),
   ?assertEqual([], maps:get(pending, Status)),
   Applied = maps:get(applied, Status),
-  ?assert(lists:member("20260501120000_base_schema", Applied)),
-  ?assert(lists:member("20260504150000_test_migration", Applied)),
-  ?assert(lists:member("20260716230000_ticket_source_and_hash_index", Applied)).
+  lists:foreach(fun(V) ->
+    ?assert(lists:member(V, Applied))
+  end, ?ALL_VERSIONS).
 
 test_ensure_applied_idempotent() ->
   ?assertEqual(ok, migration_engine:ensure_applied()),
@@ -55,12 +63,9 @@ test_join_wait() ->
   mnesia:dirty_write(#schema_migration{version = ?LOCK_VERSION, applied_at = Now}),
   spawn(fun() ->
     timer:sleep(100),
-    mnesia:dirty_write(#schema_migration{
-      version = "20260501120000_base_schema", applied_at = Now}),
-    mnesia:dirty_write(#schema_migration{
-      version = "20260504150000_test_migration", applied_at = Now}),
-    mnesia:dirty_write(#schema_migration{
-      version = "20260716230000_ticket_source_and_hash_index", applied_at = Now}),
+    lists:foreach(fun(V) ->
+      mnesia:dirty_write(#schema_migration{version = V, applied_at = Now})
+    end, ?ALL_VERSIONS),
     mnesia:dirty_delete({schema_migration, ?LOCK_VERSION})
   end),
   ?assertEqual(ok, migration_engine:ensure_applied()).