diff --git a/internal/repository/migrations/sqlite3/09_add-job-cache.up.sql b/internal/repository/migrations/sqlite3/09_add-job-cache.up.sql
index d716c40..82e8d15 100644
--- a/internal/repository/migrations/sqlite3/09_add-job-cache.up.sql
+++ b/internal/repository/migrations/sqlite3/09_add-job-cache.up.sql
@@ -224,4 +224,7 @@ CREATE INDEX IF NOT EXISTS jobs_numacc_starttime ON job (num_acc, start_time);
 CREATE INDEX IF NOT EXISTS jobs_energy_starttime ON job (energy, start_time);
 
 -- Optimize DB index usage
-PRAGMA optimize;
\ No newline at end of file
+PRAGMA optimize;
+
+-- Optimize DB size: https://sqlite.org/lang_vacuum.html 
+VACUUM;
\ No newline at end of file