diff --git a/build/msvc/SLADE.rc b/build/msvc/SLADE.rc
index e8edb9eae..ec377e2d9 100644
--- a/build/msvc/SLADE.rc
+++ b/build/msvc/SLADE.rc
@@ -90,12 +90,12 @@ BEGIN
         BLOCK "0c0904b0"
         BEGIN
             VALUE "FileDescription", "SLADE"
-            VALUE "FileVersion", "3.1.2 Beta 4"
+            VALUE "FileVersion", "3.1.2 Beta 5"
             VALUE "InternalName", "SLADE.exe"
             VALUE "LegalCopyright", "Copyright (C) 2017"
             VALUE "OriginalFilename", "SLADE.exe"
             VALUE "ProductName", "SLADE"
-            VALUE "ProductVersion", "3.1.2 Beta 4"
+            VALUE "ProductVersion", "3.1.2 Beta 5"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/dist/makebuild.ps1 b/dist/makebuild.ps1
index 1349806d2..696a96590 100644
--- a/dist/makebuild.ps1
+++ b/dist/makebuild.ps1
@@ -1,5 +1,5 @@
-$version = "3120_b4"
-$versionstring = "3.1.2 Beta 4"
+$version = "3120_b5"
+$versionstring = "3.1.2 Beta 5"
 
 # Check for 7-zip install
 $7zpath = "$env:ProgramFiles\7-Zip\7z.exe"
diff --git a/src/Application/SLADEWxApp.cpp b/src/Application/SLADEWxApp.cpp
index d21f5e9a6..7c81e5b10 100644
--- a/src/Application/SLADEWxApp.cpp
+++ b/src/Application/SLADEWxApp.cpp
@@ -59,9 +59,9 @@ namespace Global
 {
 	string error = "";
 
-	int beta_num = 4;
+	int beta_num = 5;
 	int version_num = 3120;
-	string version = "3.1.2 Beta 4";
+	string version = "3.1.2 Beta 5";
 #ifdef GIT_DESCRIPTION
 	string sc_rev = GIT_DESCRIPTION;
 #else
diff --git a/win_installer/SLADE.iss b/win_installer/SLADE.iss
index c0145ed64..014493ee3 100644
--- a/win_installer/SLADE.iss
+++ b/win_installer/SLADE.iss
@@ -2,8 +2,8 @@
 ; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
 
 #define MyAppName "SLADE"
-#define MyAppVersion "3.1.2 Beta 1"
-#define VersionNum "3120_b1"
+#define MyAppVersion "3.1.2"
+#define VersionNum "3120"
 #define MyAppURL "http://slade.mancubus.net"
 #define MyAppExeName "SLADE.exe"