diff --git a/lambda-requirements.txt b/lambda-requirements.txt
index 40980d5..c494e03 100644
--- a/lambda-requirements.txt
+++ b/lambda-requirements.txt
@@ -1,6 +1,6 @@
 certifi==2018.11.29
 chardet==3.0.4
 idna==2.8
-lxml==4.6.5
+lxml==4.9.1
 requests==2.21.0
 urllib3==1.26.5
diff --git a/local-requirements.txt b/local-requirements.txt
index 5a6e8f2..30a62f4 100644
--- a/local-requirements.txt
+++ b/local-requirements.txt
@@ -5,7 +5,7 @@ chardet==3.0.4
 docutils==0.14
 idna==2.8
 jmespath==0.9.3
-lxml==4.6.5
+lxml==4.9.1
 python-dateutil==2.7.5
 requests==2.21.0
 s3transfer==0.1.13