diff --git a/client/version.py b/client/version.py
index 2a202c14..08efb4e0 100644
--- a/client/version.py
+++ b/client/version.py
@@ -1,2 +1,2 @@
-ELECTRUM_VERSION = "0.39b"
+ELECTRUM_VERSION = "0.40"
 SEED_VERSION = 4  # bump this everytime the seed generation is modified