diff --git a/.gitignore b/.gitignore
index dbc4204..2f07599 100644
--- a/.gitignore
+++ b/.gitignore
@@ -63,3 +63,6 @@ Thumbs.db
 *.css.*
 *.html.*
 *.sqlite.*
+
+!lib/
+!lib/librknnrt.so
diff --git a/lib/librknnrt.so b/lib/librknnrt.so
new file mode 100755
index 0000000..e53a2b6
Binary files /dev/null and b/lib/librknnrt.so differ