diff --git a/configure.ac b/configure.ac
index 43e0afe..34be9a8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@ AC_PREREQ(2.54)
 
 m4_define([tinyproxy_major_version], [1])
 m4_define([tinyproxy_minor_version], [8])
-m4_define([tinyproxy_micro_version], [3])
+m4_define([tinyproxy_micro_version], [4])
 m4_define([tinyproxy_real_version],
           [tinyproxy_major_version.tinyproxy_minor_version.tinyproxy_micro_version])
 m4_define([tinyproxy_version], [tinyproxy_real_version])