diff --git a/backend/search/api.py b/backend/search/api.py
index 1707779..9a6183d 100644
--- a/backend/search/api.py
+++ b/backend/search/api.py
@@ -16,6 +16,7 @@ from search.reviews import ReviewSnapshots, ReviewStore
 
 
 API_VERSION = "v1"
+SEARCH_ALGORITHM_VERSION = "search-1"
 LANGUAGES = {"ru", "ky"}
 CODE = re.compile(r"^[0-9]+$")
 MAX_PAGE_SIZE = 100
@@ -152,7 +153,7 @@ class Api:
         snapshot_results = [{"rank": rank, **result} for rank, result in enumerate(results, 1)]
         concrete_indexes = {hit.get("_index") for hit in hits[:page_size] if hit.get("_index")}
         index_name = next(iter(concrete_indexes)) if len(concrete_indexes) == 1 else self.index
-        return {"api_version": API_VERSION, "query": text, "language": language, "page": page, "page_size": page_size, "has_next": len(hits) > page_size, "results": results, "review_token": self.review_snapshots.create(text, language, index_name, snapshot_results, API_VERSION)}
+        return {"api_version": API_VERSION, "query": text, "language": language, "page": page, "page_size": page_size, "has_next": len(hits) > page_size, "results": results, "review_token": self.review_snapshots.create(text, language, index_name, snapshot_results, SEARCH_ALGORITHM_VERSION)}
 
     @staticmethod
     def search_hit(hit: dict, language: str) -> dict: