diff --git a/config.inc b/config.inc
index e54536df..7fab9b10 100644
--- a/config.inc
+++ b/config.inc
@@ -14,7 +14,7 @@
 .define kDeskTopProductName "Apple II DeskTop"
 kDeskTopVersionMajor = 1
 kDeskTopVersionMinor = 3
-.define kDeskTopVersionSuffix "-alpha3"
+.define kDeskTopVersionSuffix "-alpha4"
 .define kBuildDate "March 1, 2023"
 kBuildYYYY = 2023
 kBuildYY = 23