diff --git a/configure.ac b/configure.ac
index 82ca641..37d9d75 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@
 
 AC_PREREQ(2.65)
 
-AC_INIT([thrift], [0.8.0-dev])
+AC_INIT([thrift], [0.9.0-dev])
 
 AC_CONFIG_AUX_DIR([.])