increment version number
diff --git a/build.gradle b/build.gradle
index 0838e52..d53b791 100755
--- a/build.gradle
+++ b/build.gradle
@@ -33,7 +33,7 @@
 def tapestryVersion() {
 
     def major = "5.5.0"
-    def minor = "-alpha-4"
+    def minor = "-alpha-5"
 
     // When building on the CI server, make sure -SNAPSHOT is appended, as it is a nightly build.
     // When building normally, or for a release, no suffix is desired.