diff --git a/installer/Deploy.bat b/installer/Deploy.bat
index 6649d180..372ea677 100644
--- a/installer/Deploy.bat
+++ b/installer/Deploy.bat
@@ -63,6 +63,6 @@ signtool sign /f %NPF_CERT_PATH% /p %NPF_SIGN_PK% .\x64\wpcap.dll
 
 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
 :: Sign the installer
-signtool sign /f %NPF_CERT_PATH% /p %NPF_SIGN_PK% .\npcap-nmap-0.03.exe
+signtool sign /f %NPF_CERT_PATH% /p %NPF_SIGN_PK% .\npcap-nmap-0.04.exe
 
 pause
diff --git a/installer/Deploy_WinPcap.bat b/installer/Deploy_WinPcap.bat
index 386c10bd..bc6a2f57 100644
--- a/installer/Deploy_WinPcap.bat
+++ b/installer/Deploy_WinPcap.bat
@@ -63,6 +63,6 @@ signtool sign /f %NPF_CERT_PATH% /p %NPF_SIGN_PK% .\x64\wpcap.dll
 
 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
 :: Sign the installer
-signtool sign /f %NPF_CERT_PATH% /p %NPF_SIGN_PK% .\npcap-nmap-0.03.exe
+signtool sign /f %NPF_CERT_PATH% /p %NPF_SIGN_PK% .\npcap-nmap-0.04.exe
 
 pause
diff --git a/installer/NPcap-for-nmap.nsi b/installer/NPcap-for-nmap.nsi
index bc3a882b..85c3b010 100644
--- a/installer/NPcap-for-nmap.nsi
+++ b/installer/NPcap-for-nmap.nsi
@@ -24,7 +24,10 @@
 ;; Updated to 0.02, July 2015
 
 ;; Yang Luo
-;; Updated to 0.02, July 2015
+;; Updated to 0.03, July 2015
+
+;; Yang Luo
+;; Updated to 0.04, August 2015
 
 SetCompressor /SOLID /FINAL lzma
 
@@ -40,8 +43,8 @@ SetCompressor /SOLID /FINAL lzma
 ;General
 
 ; The version of Npcap
-!define VERSION "0.03"
-!define WIN_VERSION "0.3.0.727"
+!define VERSION "0.04"
+!define WIN_VERSION "0.4.0.815"
 
 ; The name of the installer
 Name "Npcap ${VERSION} for Nmap (beta)"
diff --git a/version.h b/version.h
index 44b64bd7..bcb9b160 100644
--- a/version.h
+++ b/version.h
@@ -23,12 +23,13 @@
 // 0.1.0.710  -->  Npcap  0.01 beta (NDIS6)
 // 0.2.0.718  -->  Npcap  0.02 beta
 // 0.3.0.727  -->  Npcap  0.03 beta
+// 0.4.0.815  -->  Npcap  0.04 beta
 
 #define WINPCAP_MAJOR	0
-#define WINPCAP_MINOR	3
+#define WINPCAP_MINOR	4
 #define WINPCAP_REV		0
-#define WINPCAP_BUILD	727
-#define WINPCAP_VER_STRING	"0.03"
+#define WINPCAP_BUILD	815
+#define WINPCAP_VER_STRING	"0.04"
 #define WINPCAP_PACKET9x_STRING_VERSION	WINPCAP_VER_STRING
 #define WINPCAP_WPCAP_STRING_VERSION WINPCAP_VER_STRING