diff --git a/TWITTER/requirements.txt b/TWITTER/requirements.txt
index 49764dc..bc43e4b 100644
--- a/TWITTER/requirements.txt
+++ b/TWITTER/requirements.txt
@@ -1,7 +1,7 @@
 flask-cors == 3.0.7
 pyjwt == 1.7.1
 flask-pymongo == 2.2.0
-cryptography == 2.4.2
+cryptography == 3.2
 pytest == 4.2.1
 requests == 2.21.0
 flasgger == 0.9.2