diff --git a/requirements.txt b/requirements.txt
index 955ee53d..227aacf6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 pyaes==1.6.1
-pysocks==1.6.8
\ No newline at end of file
+pysocks==1.6.8
+typing==3.6.6; python_version<"3.5"
\ No newline at end of file