diff --git a/Olo.BuildTools/addin-project.xml b/Olo.BuildTools/addin-project.xml
index 7093039..6f5fd90 100644
--- a/Olo.BuildTools/addin-project.xml
+++ b/Olo.BuildTools/addin-project.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<AddinProject appVersion="5.6">
+<AddinProject appVersion="5.0">
 	<Project platforms="Linux Win32 Mac">
 		<AddinFile>Olo.BuildTools/bin/Debug/Olo.BuildTools.dll</AddinFile>
 		<BuildFile>Olo.BuildTools.sln</BuildFile>