diff --git a/models/13.session b/models/13.session
index 06e34ce..27d2620 100644
--- a/models/13.session
+++ b/models/13.session
@@ -1,7 +1,7 @@
 window_sizes 1920 1001 450 1464 819 128
 
 show_stereotypes
-selected classdiagram_ref 147764 // design-model
+selected sequencediagram_ref 128269 // 6-3-zmianaSposobuPlatnosci
 open
   classview_ref 134708 // design
 end
diff --git a/models/models.prj b/models/models.prj
index 93b4a36..f2d54a3 100644
--- a/models/models.prj
+++ b/models/models.prj
@@ -1,7 +1,7 @@
 format 224
 "models"
-  revision 13
-  modified_by 100 "davzai"
+  revision 14
+  modified_by 13 "Arek"
 
 
   
@@ -1348,7 +1348,7 @@ format 224
       end
     end
 
-    sequencediagram 128013 "use_case_6_1"
+    sequencediagram 128013 "6-1-wprowadzenieGotowki"
       sequencediagramsettings end
       overlapping_bars size A4
     end
@@ -1369,7 +1369,7 @@ format 224
         end
     end
 
-    sequencediagram 128141 "use_case_6_2"
+    sequencediagram 128141 "6-2-anulowaniePlatnosci"
       sequencediagramsettings end
       overlapping_bars size A4
     end
@@ -1390,7 +1390,7 @@ format 224
         end
     end
 
-    sequencediagram 128269 "use_case_6_3"
+    sequencediagram 128269 "6-3-zmianaSposobuPlatnosci"
       sequencediagramsettings end
       overlapping_bars size A4
     end
@@ -2197,5 +2197,4 @@ format 224
         end
     end
   end
-
 end