diff --git a/Pantograph/Version.lean b/Pantograph/Version.lean
index d71bedb..67cbb8f 100644
--- a/Pantograph/Version.lean
+++ b/Pantograph/Version.lean
@@ -1,5 +1,5 @@
 namespace Pantograph
 
-def version := "0.2.10"
+def version := "0.2.10-alpha"
 
 end Pantograph