diff --git a/bison/bison.spec b/bison/bison.spec
index 6b93353a7c..030fcae42b 100644
--- a/bison/bison.spec
+++ b/bison/bison.spec
@@ -22,7 +22,7 @@
 ##
 
 #   package versions
-%define       V_new      2.5
+%define       V_new      2.5.1
 %define       V_old      1.35
 
 #   package information
@@ -36,7 +36,7 @@ Class:        CORE
 Group:        CompilerCompiler
 License:      GPL
 Version:      %{V_new}
-Release:      20111211
+Release:      20120606
 
 #   package options
 %option       with_old   no