diff --git a/requirements/core.txt b/requirements/core.txt
index b61fd9b..b2fd366 100644
--- a/requirements/core.txt
+++ b/requirements/core.txt
@@ -1,5 +1,5 @@
 cython==0.29.14
-lxml==4.4.2
+lxml==4.6.5
 # Not supported on windows, removed since the only place we use this is in the junction read counting
 # script.
 # pysam==0.15.3