diff --git a/src/libfetchers/cache.cc b/src/libfetchers/cache.cc
index 7019b0325d7..ab877f3800f 100644
--- a/src/libfetchers/cache.cc
+++ b/src/libfetchers/cache.cc
@@ -36,7 +36,7 @@ struct CacheImpl : Cache
     {
         auto state(_state.lock());
 
-        auto dbPath = getCacheDir() + "/nix/fetcher-cache-v2.sqlite";
+        auto dbPath = getCacheDir() + "/nix/fetcher-cache-v3.sqlite";
         createDirs(dirOf(dbPath));
 
         state->db = SQLite(dbPath);