diff --git a/requirements.txt b/requirements.txt
index 4133c53..7cf236f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ bs4==0.0.1
 certifi==2017.4.17
 chardet==3.0.3
 idna==2.5
-lxml==3.8.0
+lxml==4.9.1
 requests==2.20.0
 urllib3==1.21.1
diff --git a/setup.py b/setup.py
index a597cb4..b79e159 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
         "chardet==3.0.3",
         "click==6.7",
         "idna==2.5",
-        "lxml==3.8.0",
+        "lxml==4.9.1",
         "requests==2.20.0",
         "sh==1.12.14",
         "urllib3==1.21.1"