diff --git a/.gitmodules b/.gitmodules
index 950bc60ec82e5164eacb2a95505f1ff658bb11d6..4f53acdd5409ded07eb0c363c28b89971462d6b7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -137,3 +137,4 @@
 [submodule "libdap-iot"]
 	path = libdap-iot
 	url = https://github.com/kelvinblockchain/libdap-iot
+	branch = master
diff --git a/libdap b/libdap
index 4ab41cdcaa8087323652cd5fef702876ccc25dab..fe2d713768655fb05e987b8e64d212c40b17b0ae 160000
--- a/libdap
+++ b/libdap
@@ -1 +1 @@
-Subproject commit 4ab41cdcaa8087323652cd5fef702876ccc25dab
+Subproject commit fe2d713768655fb05e987b8e64d212c40b17b0ae
diff --git a/libdap-chain b/libdap-chain
index 8cb626b017762418c533a39157b5855e420b0913..76ccee895bcb91d886407da5f86442c77bdad137 160000
--- a/libdap-chain
+++ b/libdap-chain
@@ -1 +1 @@
-Subproject commit 8cb626b017762418c533a39157b5855e420b0913
+Subproject commit 76ccee895bcb91d886407da5f86442c77bdad137
diff --git a/libdap-chain-crypto b/libdap-chain-crypto
index 41e4dded618adf36bd16b6bbb846d4b532df8779..1ee483816f9cf924d2d43a61115e702a032956db 160000
--- a/libdap-chain-crypto
+++ b/libdap-chain-crypto
@@ -1 +1 @@
-Subproject commit 41e4dded618adf36bd16b6bbb846d4b532df8779
+Subproject commit 1ee483816f9cf924d2d43a61115e702a032956db
diff --git a/libdap-chain-gdb b/libdap-chain-gdb
index fd06d42d339f21eacccc55855f18fa61a1062fff..149b35607dcd7324a418f7151f8181b973b8d58c 160000
--- a/libdap-chain-gdb
+++ b/libdap-chain-gdb
@@ -1 +1 @@
-Subproject commit fd06d42d339f21eacccc55855f18fa61a1062fff
+Subproject commit 149b35607dcd7324a418f7151f8181b973b8d58c
diff --git a/libdap-chain-global-db b/libdap-chain-global-db
index e86d619406ee594a0e63b0fb3d9a523e8fb04735..00b48a1455c95aca02d055754b34bd1737a27db4 160000
--- a/libdap-chain-global-db
+++ b/libdap-chain-global-db
@@ -1 +1 @@
-Subproject commit e86d619406ee594a0e63b0fb3d9a523e8fb04735
+Subproject commit 00b48a1455c95aca02d055754b34bd1737a27db4
diff --git a/libdap-chain-mempool b/libdap-chain-mempool
index a89db0518e93d5365852a7900c999acb86a3bf03..6a4ea175d93c55be7075f2bd27d5933314ace3ce 160000
--- a/libdap-chain-mempool
+++ b/libdap-chain-mempool
@@ -1 +1 @@
-Subproject commit a89db0518e93d5365852a7900c999acb86a3bf03
+Subproject commit 6a4ea175d93c55be7075f2bd27d5933314ace3ce
diff --git a/libdap-chain-net b/libdap-chain-net
index 1e46bb6fd548d3a3bf08794aea7b9a46a2d98a49..07448de3ea5a1e4c3655a2cbdff4d852896fc611 160000
--- a/libdap-chain-net
+++ b/libdap-chain-net
@@ -1 +1 @@
-Subproject commit 1e46bb6fd548d3a3bf08794aea7b9a46a2d98a49
+Subproject commit 07448de3ea5a1e4c3655a2cbdff4d852896fc611
diff --git a/libdap-chain-wallet b/libdap-chain-wallet
index af8f50e1bfb4a1048ac13ac7085c143ac7da2538..0406c6ea5c656afe498e171f9e3463f132c23db2 160000
--- a/libdap-chain-wallet
+++ b/libdap-chain-wallet
@@ -1 +1 @@
-Subproject commit af8f50e1bfb4a1048ac13ac7085c143ac7da2538
+Subproject commit 0406c6ea5c656afe498e171f9e3463f132c23db2
diff --git a/libdap-crypto b/libdap-crypto
index ff63d762657f9687173db825705b8bf4b958abee..a51f2f81038f7118127404c5fa977f34e49a04f1 160000
--- a/libdap-crypto
+++ b/libdap-crypto
@@ -1 +1 @@
-Subproject commit ff63d762657f9687173db825705b8bf4b958abee
+Subproject commit a51f2f81038f7118127404c5fa977f34e49a04f1
diff --git a/libdap-server-core b/libdap-server-core
index f4251b060a1c9d3acf5b90bbfc8ec70f31918781..f3aa992e316e0af2814f741eb5e06b93a9eca651 160000
--- a/libdap-server-core
+++ b/libdap-server-core
@@ -1 +1 @@
-Subproject commit f4251b060a1c9d3acf5b90bbfc8ec70f31918781
+Subproject commit f3aa992e316e0af2814f741eb5e06b93a9eca651