diff --git a/.gitmodules b/.gitmodules
index 3a5e93f1aa7bbde7ae2548144b50e2e66082a1d9..932c689c65fdc63451214273ad6f6cb896a9d809 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,8 @@
 [submodule "libdap-server-core"]
 	path = libdap-server-core
 	url = https://github.com/kelvinblockchain/libdap-server-core.git
+	branch = master
 [submodule "test/libdap-test"]
 	path = test/libdap-test
 	url = https://github.com/kelvinblockchain/libdap-test.git
+	branch = master
diff --git a/libdap-server-core b/libdap-server-core
index e015592e0383b32b0d54fd6480d1cbf0dbbb35c9..e243e0e335e401d4a429e33d080c37e231f8c3fa 160000
--- a/libdap-server-core
+++ b/libdap-server-core
@@ -1 +1 @@
-Subproject commit e015592e0383b32b0d54fd6480d1cbf0dbbb35c9
+Subproject commit e243e0e335e401d4a429e33d080c37e231f8c3fa
diff --git a/test/libdap-test b/test/libdap-test
index e542fdbcbced6ce9b1c4cae4a92fa8580403941e..3f1e90885504423980b089051c57a36bbab6d093 160000
--- a/test/libdap-test
+++ b/test/libdap-test
@@ -1 +1 @@
-Subproject commit e542fdbcbced6ce9b1c4cae4a92fa8580403941e
+Subproject commit 3f1e90885504423980b089051c57a36bbab6d093