diff --git a/src/main.py b/src/main.py
index b9ee320..0860aa7 100644
--- a/src/main.py
+++ b/src/main.py
@@ -45,7 +45,6 @@ class ProxyScrapingService:
 
     def __init__(self):
         """Initialize the proxy scraping service."""
-        self.db = DatabaseManager()
         self.validator = ProxyValidator()
         self.scheduler = BlockingScheduler(timezone=pytz.UTC)
 
@@ -56,6 +55,9 @@ class ProxyScrapingService:
         logger.info(f"Starting proxy scraping job at {job_start}")
         logger.info("=" * 80)
 
+        # Create database connection for this job
+        db = DatabaseManager()
+
         try:
             # Step 1: Scrape proxies from sources
             logger.info("Step 1: Scraping proxies from sources...")
@@ -95,7 +97,7 @@ class ProxyScrapingService:
             inserted_count = 0
 
             for proxy in validated_proxies:
-                if self.db.insert_proxy(proxy):
+                if db.insert_proxy(proxy):
                     inserted_count += 1
 
             logger.info(
@@ -105,12 +107,14 @@ class ProxyScrapingService:
 
             # Step 5: Display statistics
             logger.info("Step 5: Database statistics...")
-            stats = self.db.get_stats()
+            stats = db.get_stats()
             self._display_stats(stats)
 
         except Exception as e:
             logger.error(f"Error during scraping job: {e}", exc_info=True)
         finally:
+            # Close database connection
+            db.close()
             job_end = datetime.now()
             duration = (job_end - job_start).total_seconds()
             logger.info("=" * 80)
@@ -125,10 +129,13 @@ class ProxyScrapingService:
         logger.info(f"Starting proxy validation job at {job_start}")
         logger.info("=" * 80)
 
+        # Create database connection for this job
+        db = DatabaseManager()
+
         try:
             # Step 1: Get all proxies from database
             logger.info("Step 1: Fetching all proxies from database...")
-            all_proxies = self.db.get_all_proxies()
+            all_proxies = db.get_all_proxies()
 
             if not all_proxies:
                 logger.warning("No proxies found in database to validate")
@@ -153,7 +160,7 @@ class ProxyScrapingService:
 
                 if is_active and response_time_ms is not None:
                     # Proxy is working - update status in database
-                    if self.db.update_proxy_status(
+                    if db.update_proxy_status(
                         ip_address, port, protocol, True, response_time_ms
                     ):
                         validated_count += 1
@@ -162,7 +169,7 @@ class ProxyScrapingService:
                         )
                 else:
                     # Proxy failed - delete from database
-                    if self.db.delete_proxy(ip_address, port, protocol):
+                    if db.delete_proxy(ip_address, port, protocol):
                         deleted_count += 1
                         logger.info(
                             f"Proxy {ip_address}:{port} failed validation - removed from database"
@@ -175,12 +182,14 @@ class ProxyScrapingService:
 
             # Step 3: Display statistics
             logger.info("Step 3: Database statistics...")
-            stats = self.db.get_stats()
+            stats = db.get_stats()
             self._display_stats(stats)
 
         except Exception as e:
             logger.error(f"Error during validation job: {e}", exc_info=True)
         finally:
+            # Close database connection
+            db.close()
             job_end = datetime.now()
             duration = (job_end - job_start).total_seconds()
             logger.info("=" * 80)
@@ -291,10 +300,8 @@ class ProxyScrapingService:
         except (KeyboardInterrupt, SystemExit):
             logger.info("Scheduler shutdown requested")
             self.scheduler.shutdown()
-            self.db.close()
         except Exception as e:
             logger.error(f"Scheduler error: {e}", exc_info=True)
-            self.db.close()
             sys.exit(1)
 
 
@@ -322,7 +329,6 @@ def main():
         if settings.development:
             logger.info("Running in DEVELOPMENT mode - executing scraping job and exiting")
         service.run_immediate()
-        service.db.close()
         logger.info("Development run completed. Exiting.")
     else:
         # Start scheduler for recurring jobs (production mode)