diff --git a/NAPS2.Console/Properties/AssemblyInfo.cs b/NAPS2.Console/Properties/AssemblyInfo.cs
index 1f071be7b3..58b73648ee 100644
--- a/NAPS2.Console/Properties/AssemblyInfo.cs
+++ b/NAPS2.Console/Properties/AssemblyInfo.cs
@@ -49,5 +49,5 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("3.1.*")]
+[assembly: AssemblyVersion("3.1.0.*")]
 [assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/NAPS2.Core/Properties/AssemblyInfo.cs b/NAPS2.Core/Properties/AssemblyInfo.cs
index 704d99ef2c..27a71727bd 100644
--- a/NAPS2.Core/Properties/AssemblyInfo.cs
+++ b/NAPS2.Core/Properties/AssemblyInfo.cs
@@ -30,6 +30,6 @@
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("3.1.*")]
-[assembly: AssemblyVersion("3.1.*")]
+// [assembly: AssemblyVersion("3.1.0.*")]
+[assembly: AssemblyVersion("3.1.0.*")]
 [assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/NAPS2.Setup/NAPS2.Setup.wxs b/NAPS2.Setup/NAPS2.Setup.wxs
index cb58d45520..5fde0d24c9 100644
--- a/NAPS2.Setup/NAPS2.Setup.wxs
+++ b/NAPS2.Setup/NAPS2.Setup.wxs
@@ -4,7 +4,7 @@
       Id="*"
       Name="NAPS2"
       Language="1033"
-      Version="3.1"
+      Version="3.1.0"
       Manufacturer="Ben Olden-Cooligan"
       UpgradeCode="FEB82971-B3E6-4F19-9684-1D543E644D73">
     <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />
diff --git a/NAPS2/Properties/AssemblyInfo.cs b/NAPS2/Properties/AssemblyInfo.cs
index 05f3eeffda..788722ec9b 100644
--- a/NAPS2/Properties/AssemblyInfo.cs
+++ b/NAPS2/Properties/AssemblyInfo.cs
@@ -52,5 +52,5 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("3.1.*")]
+[assembly: AssemblyVersion("3.1.0.*")]
 [assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/NAPS2/Setup/setup.iss b/NAPS2/Setup/setup.iss
index 33b83b4436..e98b680a28 100644
--- a/NAPS2/Setup/setup.iss
+++ b/NAPS2/Setup/setup.iss
@@ -1,7 +1,7 @@
 ; Script generated by the Inno Setup Script Wizard.
 ; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
 
-#define AppVersion "3.1"
+#define AppVersion "3.1.0"
 
 [Setup]
 AppName=NAPS2 (Not Another PDF Scanner 2)