diff --git a/util/configure b/util/configure
index 5072bb8..b31afed 100755
--- a/util/configure
+++ b/util/configure
@@ -71,6 +71,7 @@ my @modules = (
     [http_postgres => 'ngx_postgres', 'disabled'],
     [http_srcache => 'srcache-nginx-module'],
     [http_lua => 'ngx_lua'],
+    [http_lua_upstream => 'ngx_lua_upstream'],
     [http_headers_more => 'headers-more-nginx-module'],
     [http_array_var => 'array-var-nginx-module'],
     [http_memc => 'memc-nginx-module'],
@@ -188,6 +189,9 @@ for my $opt (@ARGV) {
     } elsif ($opt eq '--without-lua_resty_core') {
         $resty_opts{no_lua_resty_core} = 1;
 
+    } elsif ($opt eq '--without-lua_resty_upstream_healthcheck') {
+        $resty_opts{no_lua_resty_upstream_healthcheck} = 1;
+
     } elsif ($opt eq '--without-lua_rds_parser') {
         $resty_opts{no_lua_rds_parser} = 1;
 
@@ -400,6 +404,7 @@ _END_
     if (!$opts->{lua}
         && !$opts->{lua_path}
         && !$opts->{no_http_lua}
+        && !$opts->{no_http_lua_upstream}
         && !$opts->{luajit_path})
     {
         $opts->{luajit} = 1;
@@ -665,25 +670,27 @@ _EOC_
             }
 
             my $extra_opts = " DESTDIR=\$(DESTDIR) LUA_INCLUDE_DIR=$lua_inc " .
-                "LUA_LIB_DIR=$lualib_prefix";
+                "LUA_CMODULE_DIR=$lualib_prefix LUA_MODULE_DIR=$lualib_prefix";
 
             if ($on_solaris) {
-                $extra_opts .= " INSTALL=$root_dir/build/install";
+                #$extra_opts .= " INSTALL=$root_dir/build/install";
                 if ($opts->{debug}) {
-                    $extra_opts .= " CFLAGS=\"-g -O -Wall -pedantic -DMISSING_ISINF\"";
+                    $extra_opts .= " CJSON_CFLAGS=\"-g -O -fpic -DUSE_INTERNAL_ISINF\"";
 
                 } else {
-                    $extra_opts .= " CFLAGS=\"-g -O3 -Wall -pedantic -DMISSING_ISINF\"";
+                    $extra_opts .= " CJSON_CFLAGS=\"-g -fpic -DUSE_INTERNAL_ISINF\"";
                 }
 
             } else {
                 if ($opts->{debug}) {
-                    $extra_opts .= " CFLAGS=\"-g -O -Wall -pedantic\"";
+                    $extra_opts .= " CJSON_CFLAGS=\"-g -O -fpic\"";
+                } else {
+                    $extra_opts .= " CJSON_CFLAGS=\"-g -fpic\"";
                 }
             }
 
             if ($platform eq 'macosx') {
-                $extra_opts .= " LDFLAGS='-bundle -undefined dynamic_lookup'";
+                $extra_opts .= " CJSON_LDFLAGS='-bundle -undefined dynamic_lookup'";
             }
 
             if (defined $cc) {
@@ -794,10 +801,11 @@ _EOC_
         }
 
         for my $key (qw(dns memcached redis mysql string upload websocket
-                        lock core))
+                        lock core upstream_healthcheck))
         {
             unless ($opts->{"no_lua_resty_$key"}) {
-                my $name = "lua-resty-$key";
+                (my $key2 = $key) =~ s/_/-/g;
+                my $name = "lua-resty-$key2";
                 my $dir = auto_complete $name;
                 if (!defined $dir) {
                     die "No $name found";
diff --git a/util/mirror-tarballs b/util/mirror-tarballs
index d4912fe..962edcf 100755
--- a/util/mirror-tarballs
+++ b/util/mirror-tarballs
@@ -301,13 +301,20 @@ mv chaoslawful-drizzle-nginx-module-* drizzle-nginx-module-$ver || exit 1
 
 #################################
 
-ver=0.9.4
+ver=0.9.5
 $root/util/get-tarball "https://github.com/chaoslawful/lua-nginx-module/tarball/v$ver" -O lua-nginx-module-$ver.tar.gz || exit 1
 tar -xzf lua-nginx-module-$ver.tar.gz || exit 1
 mv chaoslawful-lua-nginx-module-* ngx_lua-$ver || exit 1
 
 #################################
 
+ver=0.01
+$root/util/get-tarball "https://github.com/agentzh/lua-upstream-nginx-module/tarball/v$ver" -O lua-upstream-nginx-module-$ver.tar.gz || exit 1
+tar -xzf lua-upstream-nginx-module-$ver.tar.gz || exit 1
+mv agentzh-lua-upstream-nginx-module-* ngx_lua_upstream-$ver || exit 1
+
+#################################
+
 ver=0.03
 $root/util/get-tarball "https://github.com/agentzh/array-var-nginx-module/tarball/v$ver" -O array-var-nginx-module-$ver.tar.gz || exit 1
 tar -xzf array-var-nginx-module-$ver.tar.gz || exit 1
@@ -424,7 +431,7 @@ echo
 
 #################################
 
-ver=2.1-20140129
+ver=2.1-20140305
 $root/util/get-tarball "https://github.com/agentzh/luajit2/archive/v$ver.tar.gz" -O "LuaJIT-$ver.tar.gz" || exit 1
 tar -xzf LuaJIT-$ver.tar.gz || exit 1
 mv luajit2-* LuaJIT-$ver || exit 1
@@ -445,8 +452,8 @@ mv luajit2-* LuaJIT-$ver || exit 1
 
 #################################
 
-ver=1.0.3
-$root/util/get-tarball "http://www.kyne.com.au/~mark/software/old/lua-cjson-$ver.tar.gz" -O "lua-cjson-$ver.tar.gz" || exit 1
+ver=2.1.0.1
+$root/util/get-tarball "https://github.com/agentzh/lua-cjson/archive/$ver.tar.gz" -O "lua-cjson-$ver.tar.gz" || exit 1
 tar -xzf lua-cjson-$ver.tar.gz || exit 1
 cd lua-cjson-$ver || exit 1
 #patch -p1 < $root/patches/lua_cjson-$ver-array_detection_fix.patch || exit 1
@@ -482,7 +489,7 @@ mv agentzh-lua-resty-memcached-* lua-resty-memcached-$ver || exit 1
 
 #################################
 
-ver=0.18
+ver=0.19
 $root/util/get-tarball "https://github.com/agentzh/lua-resty-redis/tarball/v$ver" -O "lua-resty-redis-$ver.tar.gz" || exit 1
 tar -xzf lua-resty-redis-$ver.tar.gz || exit 1
 mv agentzh-lua-resty-redis-* lua-resty-redis-$ver || exit 1
@@ -524,13 +531,20 @@ mv agentzh-lua-resty-lock-* lua-resty-lock-$ver || exit 1
 
 #################################
 
-ver=0.0.3
+ver=0.0.4
 $root/util/get-tarball "https://github.com/agentzh/lua-resty-core/tarball/v$ver" -O "lua-resty-core-$ver.tar.gz" || exit 1
 tar -xzf lua-resty-core-$ver.tar.gz || exit 1
 mv agentzh-lua-resty-core-* lua-resty-core-$ver || exit 1
 
 #################################
 
+ver=0.01
+$root/util/get-tarball "https://github.com/agentzh/lua-resty-upstream-healthcheck/tarball/v$ver" -O "lua-resty-upstream-healthcheck-$ver.tar.gz" || exit 1
+tar -xzf lua-resty-upstream-healthcheck-$ver.tar.gz || exit 1
+mv agentzh-lua-resty-upstream-healthcheck-* lua-resty-upstream-healthcheck-$ver || exit 1
+
+#################################
+
 rm *.tar.gz
 
 cd ..