diff --git a/.gitmodules b/.gitmodules
index 2ea4a31da..b1ed51767 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -49,3 +49,6 @@
 [submodule "submodules/bctoolbox"]
 	path = submodules/bctoolbox
 	url = git://git.linphone.org/bctoolbox.git
+[submodule "submodules/externals/mbedtls"]
+	path = submodules/externals/mbedtls
+	url = git://git.linphone.org/mbedtls.git
diff --git a/submodules/bctoolbox b/submodules/bctoolbox
index 6eb484f8c..1f469d085 160000
--- a/submodules/bctoolbox
+++ b/submodules/bctoolbox
@@ -1 +1 @@
-Subproject commit 6eb484f8c1039cfcddc52cce57d21b51de857ef4
+Subproject commit 1f469d085dfd67dd05288ff7dc8af00201fab31c
diff --git a/submodules/belle-sip b/submodules/belle-sip
index c130b4eba..fa541d67f 160000
--- a/submodules/belle-sip
+++ b/submodules/belle-sip
@@ -1 +1 @@
-Subproject commit c130b4eba162cdcc4c03838e5430867f8b418257
+Subproject commit fa541d67f415bb6379ddf99f97e32c84250ef63f
diff --git a/submodules/bzrtp b/submodules/bzrtp
index 19923c268..de8bd747f 160000
--- a/submodules/bzrtp
+++ b/submodules/bzrtp
@@ -1 +1 @@
-Subproject commit 19923c26888daf96584cfe6468f9c1bb4a63114b
+Subproject commit de8bd747f4dd38c32bb7ba5d0613fdfdf4b0475c
diff --git a/submodules/cmake-builder b/submodules/cmake-builder
index de07c524f..1f2091190 160000
--- a/submodules/cmake-builder
+++ b/submodules/cmake-builder
@@ -1 +1 @@
-Subproject commit de07c524ffa37121544bae56f31db82bc24e8d58
+Subproject commit 1f2091190c8e56927d614d837eb8983aa62a241e
diff --git a/submodules/externals/mbedtls b/submodules/externals/mbedtls
new file mode 160000
index 000000000..3b88f2749
--- /dev/null
+++ b/submodules/externals/mbedtls
@@ -0,0 +1 @@
+Subproject commit 3b88f2749d59e5346de08e121fba1d797c55ddaa