diff --git a/matrix-synapse.spec b/matrix-synapse.spec
index 155c209..d56b079 100644
--- a/matrix-synapse.spec
+++ b/matrix-synapse.spec
@@ -1,8 +1,8 @@
 %global srcname synapse
 
 # Version suffix in URL when building release candidates
-%global rcx %{nil}
-%global ghversion 1.39.0
+%global rcx rc1
+%global ghversion 1.40.0
 
 %{?python_enable_dependency_generator}