diff --git a/optional-requirements.txt b/optional-requirements.txt
index 22accfc1..154612b3 100644
--- a/optional-requirements.txt
+++ b/optional-requirements.txt
@@ -15,6 +15,6 @@ six==1.10.0
 goodreads>=0.3.2
 python-Levenshtein>=0.12.0
 # other
-lxml==3.7.2
+lxml>=3.8.0
 rarfile>=2.7
 natsort>=2.2.0