diff --git a/erlang.spec b/erlang.spec
index a4faf5d..3cc67fb 100644
--- a/erlang.spec
+++ b/erlang.spec
@@ -1,6 +1,6 @@
 Name:           erlang
-Version:        R11B
-Release:        2.4%{?dist}
+Version:        R12B
+Release:        0.1%{?dist}
 Summary:        General-purpose programming language and runtime environment
 
 Group:          Development/Languages
diff --git a/sources b/sources
index c88cf68..308744f 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
-7d7cca1d2f392a8a317cb4c0bd904726  otp_src_R11B-2.tar.gz
-e2c45ced77ec63b9b1dd95c8f5396f7d  otp_doc_html_R11B-2.tar.gz
-c81023f591c1bace836de3aa874f3c2a  otp_doc_man_R11B-2.tar.gz
+54cd5a83697c515f571e44d4ea99c8d3  otp_src_R12B-0.tar.gz
+aa3a12a16e03d1aadec40e265f51e7c6  otp_doc_man_R12B-0.tar.gz
+ddbb484ebe97a837640e51305cc7557a  otp_doc_html_R12B-0.tar.gz