diff --git a/default.nix b/default.nix
index 70902b02b..39c83eaff 100644
--- a/default.nix
+++ b/default.nix
@@ -14,7 +14,7 @@ let
 in
 mixRelease rec {
   pname = "mobilizon";
-  version = "4.0.2";
+  version = "4.1.0-alpha.1";
 
   inherit src;