diff --git a/.gitmodules b/.gitmodules
index dd527de..c6df93e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -11,4 +11,4 @@
 [submodule "esp-open-lwip"]
 	path = esp-open-lwip
 	url = https://github.com/pfalcon/esp-open-lwip
-	branch = sdk-1.5.0-default-mss
+	branch = sdk-1.5.0-experimental
diff --git a/esp-open-lwip b/esp-open-lwip
index 88a01db..afc927a 160000
--- a/esp-open-lwip
+++ b/esp-open-lwip
@@ -1 +1 @@
-Subproject commit 88a01db5af1951bc8349b9790936e37643f51a37
+Subproject commit afc927ae9dc1b558859b779fe7cbe696606c439f