diff --git a/build-windows/libetpan_version.h b/build-windows/libetpan_version.h
index 8be7094d..f380558a 100644
--- a/build-windows/libetpan_version.h
+++ b/build-windows/libetpan_version.h
@@ -38,7 +38,7 @@
 #endif
 
 #ifndef LIBETPAN_VERSION_MINOR
-#define LIBETPAN_VERSION_MINOR 5
+#define LIBETPAN_VERSION_MINOR 6
 #endif
 
 #ifndef LIBETPAN_REENTRANT
diff --git a/configure.ac b/configure.ac
index 2c5ddc0b..3fcea529 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 m4_define([maj_version], [1])
-m4_define([min_version], [5])
+m4_define([min_version], [6])
 m4_define([api_current], [18])
 m4_define([api_revision], [0])
 m4_define([api_compatibility], [17])