diff --git a/lib/CHeroHandler.h b/lib/CHeroHandler.h
index 608745a41..65fab7b67 100644
--- a/lib/CHeroHandler.h
+++ b/lib/CHeroHandler.h
@@ -99,7 +99,7 @@ public:
 		h & initialArmy;
 		h & heroClass;
 		h & secSkillsInit;
-		if(version >= 778)
+		if(version >= 781)
 		{
 			h & specialty;
 		}
diff --git a/lib/HeroBonus.h b/lib/HeroBonus.h
index 8dd999b34..e2cb15c0c 100644
--- a/lib/HeroBonus.h
+++ b/lib/HeroBonus.h
@@ -366,7 +366,7 @@ struct DLL_LINKAGE Bonus : public std::enable_shared_from_this<Bonus>
 		h & effectRange;
 		h & limiter;
 		h & propagator;
-		if(version >= 778)
+		if(version >= 781)
 			h & updater;
 	}
 
diff --git a/lib/mapObjects/CGHeroInstance.h b/lib/mapObjects/CGHeroInstance.h
index ad381818f..b7037c890 100644
--- a/lib/mapObjects/CGHeroInstance.h
+++ b/lib/mapObjects/CGHeroInstance.h
@@ -296,7 +296,7 @@ public:
 		h & visitedTown;
 		h & boat;
 		h & type;
-		if(version < 778)
+		if(version < 781)
 		{
 			std::vector<HeroSpecial*> specialtyDeprecated;
 			h & specialtyDeprecated;
diff --git a/lib/serializer/CSerializer.h b/lib/serializer/CSerializer.h
index f358b6e6c..a13d0bd63 100644
--- a/lib/serializer/CSerializer.h
+++ b/lib/serializer/CSerializer.h
@@ -12,7 +12,7 @@
 #include "../ConstTransitivePtr.h"
 #include "../GameConstants.h"
 
-const ui32 SERIALIZATION_VERSION = 780;
+const ui32 SERIALIZATION_VERSION = 781;
 const ui32 MINIMAL_SERIALIZATION_VERSION = 753;
 const std::string SAVEGAME_MAGIC = "VCMISVG";