diff --git a/configure.ac b/configure.ac
index 9e77489..4a8d916 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # configure.in for the OpenSSL TPM engine project
 #
 
-AC_INIT(openssl-tpm-engine, 0.4.2, trousers-users@lists.sf.net)
+AC_INIT(openssl-tpm-engine, 0.5.0, trousers-users@lists.sf.net)
 AM_INIT_AUTOMAKE(1.6.3)
 
 # Debugging support