diff --git a/requirements.txt b/requirements.txt
index fc894de9..2b2cbe50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@
 # First level requirements
 imapclient==2.1.0
 olefile==0.46
-tzlocal==1.5.1
+tzlocal==2.0.0