diff --git a/scarecrow_client/requirements.txt b/scarecrow_client/requirements.txt
index 88a5674..5a60aea 100644
--- a/scarecrow_client/requirements.txt
+++ b/scarecrow_client/requirements.txt
@@ -1,5 +1,5 @@
 Pillow==8.1.1
-lxml==4.6.2
+lxml==4.6.3
 matplotlib==3.1.2
 opencv-python==4.1.2.30
 pyzmq==18.1.1
diff --git a/scarecrow_server/requirements.txt b/scarecrow_server/requirements.txt
index 9828402..0d1ee7b 100644
--- a/scarecrow_server/requirements.txt
+++ b/scarecrow_server/requirements.txt
@@ -1,6 +1,6 @@
 tensorflow>="2.*"
 Pillow==8.1.1
-lxml==4.4.2
+lxml==4.6.3
 matplotlib==3.1.2
 opencv-python==4.1.2.30
 pyzmq==18.1.1