diff --git a/src/org/gcube/application/framework/core/session/SessionManager.java b/src/org/gcube/application/framework/core/session/SessionManager.java
index 92a60d5..4b24aa3 100644
--- a/src/org/gcube/application/framework/core/session/SessionManager.java
+++ b/src/org/gcube/application/framework/core/session/SessionManager.java
@@ -50,7 +50,7 @@ public class SessionManager {
 			while(true)
 			{
 				try {
-					Thread.sleep(60000);
+					Thread.sleep(300000);
 				} catch (InterruptedException e) {
 					e.printStackTrace();
 					System.out.println(new Date(System.currentTimeMillis()) + " clean thread was interrupted (in clean thread)");