diff --git a/.gitmodules b/.gitmodules
index d9a8e69..cbb27eb 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -31,6 +31,3 @@
 [submodule "external/libzmq"]
 	path = external/libzmq
 	url = https://github.com/zeromq/libzmq
-[submodule "external/libexpat"]
-	path = external/libexpat
-	url = https://github.com/libexpat/libexpat.git
diff --git a/external/libzmq b/external/libzmq
index b95d949..5f408ba 160000
--- a/external/libzmq
+++ b/external/libzmq
@@ -1 +1 @@
-Subproject commit b95d94935ed107679fd0ad9efd2f3d47309b6fd3
+Subproject commit 5f408ba371ae4789549fb4696dcccd2ac946b7eb