diff --git a/requirements.txt b/requirements.txt
index e3f8ae0..90739b7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 httplib2
 oauth2client
-imap-tools
+imap-tools==0.30.0
 google-api-python-client
 fire
-tqdm
\ No newline at end of file
+tqdm