diff --git a/ngx-build b/ngx-build
index dc3bec1..334f6cf 100755
--- a/ngx-build
+++ b/ngx-build
@@ -274,13 +274,17 @@ sub apply_patches {
         shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-log_escape_non_ascii.patch");
     }
 
-    shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-upstream_truncation.patch");
+    unless ($ver ge '001005003') {
+        shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-upstream_truncation.patch");
+    }
 
     chdir "nginx-$version" or die "cannot switch to nginx-$version\n";
     shell("patch -p1 < $root/../ngx_openresty/patches/nginx-$version-dtrace.patch");
     chdir ".." or die "cannot switch to ..\n";
 
-    shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-channel-uninit-params.patch");
+    unless ($ver ge '001005003') {
+        shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-channel-uninit-params.patch");
+    }
 
     unless ($ver ge '001002006') {
         shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-upstream_test_connect_kqueue.patch");
@@ -315,13 +319,17 @@ sub apply_patches {
     }
 
     #warn "applying the invalid_referer_hash patch...\n";
-    shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-invalid_referer_hash.patch");
+    unless ($ver ge '001005003') {
+        shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-invalid_referer_hash.patch");
+    }
 
     if ($ver ge '001004001') {
         shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-gcc-maybe-uninitialized-warning.patch");
     }
 
-    shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-unix_socket_accept_over_read.patch");
+    unless ($ver ge '001005003') {
+        shell("patch -p0 < $root/../ngx_openresty/patches/nginx-$version-unix_socket_accept_over_read.patch");
+    }
 }
 
 sub usage {