diff --git a/requirements.txt b/requirements.txt
index 9056194..2b10189 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 beautifulsoup4==4.9.3
 pypandoc==1.5
+python-magic==0.4.24
 soupsieve==2.2.1