diff --git a/bin/installNoSource.nsi b/bin/installNoSource.nsi
index f9ba177b..7c536c47 100644
--- a/bin/installNoSource.nsi
+++ b/bin/installNoSource.nsi
@@ -1,7 +1,7 @@
 ;setup names
 !define PROGRAMNAME "Bridge Command 5.10"
 !ifndef OUTPUTFILE
-!define OUTPUTFILE "..\BridgeCommand5.10.3.exe"
+!define OUTPUTFILE "..\BridgeCommand5.10.4-alpha.1.exe"
 !endif
 !define INSTALLLOCATION "Bridge Command 5.10"
 !define SMFOLDER "Bridge Command 5.10"
diff --git a/src/Constants.hpp b/src/Constants.hpp
index a094f6dc..1df93c57 100644
--- a/src/Constants.hpp
+++ b/src/Constants.hpp
@@ -44,7 +44,7 @@ const irr::f32 DEG_IN_RAD = 180.0 / PI;
 const irr::f32 RAD_PER_S_IN_DEG_PER_MINUTE = 180.0/PI * 60 ;
 
 //general definitions
-const std::string LONGNAME = "Bridge Command 5.10.3";
+const std::string LONGNAME = "Bridge Command 5.10.4-alpha.1";
 const std::string VERSION = "5.10";
-const std::string LONGVERSION = "5.10.3";
-#endif
\ No newline at end of file
+const std::string LONGVERSION = "5.10.4-alpha.1";
+#endif