diff --git a/.gitmodules b/.gitmodules
index 7ff2a41..fdc6468 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,7 +13,7 @@
 [submodule "GNOME/libxml2"]
 	path = third_party/GNOME/libxml2
 	url = https://github.com/GNOME/libxml2.git
-	branch = v2.13.1
+	branch = v2.13.3
 [submodule "php/php-src"]
 	path = third_party/php/php-src
 	url = https://github.com/php/php-src.git
diff --git a/third_party/GNOME/libxml2 b/third_party/GNOME/libxml2
index 48dba1e..3b1742b 160000
--- a/third_party/GNOME/libxml2
+++ b/third_party/GNOME/libxml2
@@ -1 +1 @@
-Subproject commit 48dba1e21f8f1a7d8a817eaf65831396e74b78d2
+Subproject commit 3b1742b8391e966be780bdc43fdf959f7b3a118c