diff --git a/src/app/appmarket/appinstance/appinstance/appinstance.component.css b/src/app/appmarket/appinstance/appinstance/appinstance.component.css
index cb373c1ec56d1cb87377a31046f8a30e976b1da2..12ecd7c998a4d135f430c996cb562214b954c67b 100644
--- a/src/app/appmarket/appinstance/appinstance/appinstance.component.css
+++ b/src/app/appmarket/appinstance/appinstance/appinstance.component.css
@@ -78,4 +78,7 @@
 :host ::ng-deep  .p-dropdown {
     width: 200px;
 }
-
+.ui-dropdown-panel {
+    max-height: 150px;
+    overflow-y: auto;
+}
diff --git a/src/app/appmarket/appinstance/appinstance/appinstance.component.html b/src/app/appmarket/appinstance/appinstance/appinstance.component.html
index 71ee26987bb18c50056e25137e0f9a558c8eee3a..394ce52a597a6ea716030cbe9b8aa8485ad9936e 100644
--- a/src/app/appmarket/appinstance/appinstance/appinstance.component.html
+++ b/src/app/appmarket/appinstance/appinstance/appinstance.component.html
@@ -224,7 +224,7 @@
             <h4 style="text-align: center">{{'APP_INSTANCES.MANUAL_UPDATE.HEADER' | translate}}</h4>
         </div>
         <div class="nmaas-modal-body">
-            <div class="" style="height: 150px">
+            <div class="" style="height: 250px">
                 <p>{{'APP_INSTANCES.MANUAL_UPDATE.BODY' | translate}}</p>
                 <div *ngIf="appVersions.length > 0">
                     <p-dropdown id="manualUpdate" [options]="appVersions" optionLabel="version" optionValue="version"