diff --git a/data-center-business-controller/src/main/java/com/techsor/datacenter/business/configurator/RequestWrapper.java b/data-center-business-controller/src/main/java/com/techsor/datacenter/business/configurator/RequestWrapper.java
index 2626be9..2469dff 100644
--- a/data-center-business-controller/src/main/java/com/techsor/datacenter/business/configurator/RequestWrapper.java
+++ b/data-center-business-controller/src/main/java/com/techsor/datacenter/business/configurator/RequestWrapper.java
@@ -29,7 +29,7 @@ import jakarta.servlet.http.HttpServletRequestWrapper;
 
 public class RequestWrapper extends HttpServletRequestWrapper {
     private final Logger log = LoggerFactory.getLogger(getClass());
-    private static String key = "drop|chr|exec|insert|select|delete|update|count|mid|master|truncate|declare|-|+|sleep";
+    private static String key = "drop|chr|exec|insert|select|delete|update|count|mid|master|truncate|declare|sleep";
     private static Set<String> notAllowedKeyWords = new HashSet<String>(0);
     HttpServletRequest servletRequest;
     private String decryptFields;