diff --git a/pdfsam-msi-installer/src/Build.cmd b/pdfsam-msi-installer/src/Build.cmd
index 1ec71de2f..928ce50cc 100644
--- a/pdfsam-msi-installer/src/Build.cmd
+++ b/pdfsam-msi-installer/src/Build.cmd
@@ -1,6 +1,6 @@
 @ECHO OFF
 
-SET PDFSAM_VERSION=3.3.0
+SET PDFSAM_VERSION=3.3.1
 
 REM Prevent compiling with outdated pdfsam.wixobj file if there is a error in candle.
 del /Q pdfsam.wixobj
diff --git a/pdfsam-msi-installer/src/pdfsamVariables.wxi b/pdfsam-msi-installer/src/pdfsamVariables.wxi
index ca32d761f..30c129f74 100644
--- a/pdfsam-msi-installer/src/pdfsamVariables.wxi
+++ b/pdfsam-msi-installer/src/pdfsamVariables.wxi
@@ -3,11 +3,11 @@
 	<!-- Values required to change for a new release: -->
 	<?define ProductMajorVersion="3" ?>
 	<?define ProductMinorVersion="30" ?>
-	<?define ProductPatchVersion="0" ?>
+	<?define ProductPatchVersion="1" ?>
 	<!-- Changing only this doesn't qualify for an upgrade so the upgrade is not detected -->
 	<?define ProductLabelVersion="0" ?>
 	<!-- Change this -->
-	<?define ProductFullVersion="3.3.0" ?>
+	<?define ProductFullVersion="3.3.1" ?>
 
 	<!-- Static configuration options. -->
 	<?define ProductCode="*" ?>