diff --git a/requirements.txt b/requirements.txt
index 67cba08..13131bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 email_listener==1.2
 beautifulsoup4==4.11.1
-requests==2.28.1
\ No newline at end of file
+requests==2.28.1
+html5lib==1.1
\ No newline at end of file