diff --git a/.gitmodules b/.gitmodules
index 4a8a9c0e8..4b0161d77 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -120,3 +120,9 @@
 [submodule "submodules/externals/zxing-cpp"]
 	path = submodules/externals/zxing-cpp
 	url = https://gitlab.linphone.org/BC/public/external/zxing-cpp.git
+[submodule "submodules/externals/decaf"]
+	path = submodules/externals/decaf
+	url = https://gitlab.linphone.org/BC/public/external/decaf.git
+[submodule "submodules/lime"]
+	path = submodules/lime
+	url = https://gitlab.linphone.org/BC/public/lime.git
diff --git a/prepare.conf b/prepare.conf
new file mode 100644
index 000000000..bc4c93b42
--- /dev/null
+++ b/prepare.conf
@@ -0,0 +1,5 @@
+-DENABLE_LIME_X3DH=yes
+-DENABLE_LIME=no
+-DENABLE_SOCI=yes
+-DENABLE_QRCODE=yes
+
diff --git a/submodules/bctoolbox b/submodules/bctoolbox
index d5713996c..405da744b 160000
--- a/submodules/bctoolbox
+++ b/submodules/bctoolbox
@@ -1 +1 @@
-Subproject commit d5713996c2ae100594ebf319c54d95297b02a2e1
+Subproject commit 405da744b62e299d4324988de7bcdbf9779b21ac
diff --git a/submodules/belle-sip b/submodules/belle-sip
index 7a750d63b..0f999ecc3 160000
--- a/submodules/belle-sip
+++ b/submodules/belle-sip
@@ -1 +1 @@
-Subproject commit 7a750d63bbb930b899738bcaf1af21f0785bee1c
+Subproject commit 0f999ecc3d304923b6338d3f48d44ac8ddfd9be8
diff --git a/submodules/bzrtp b/submodules/bzrtp
index 41b2163c8..94f0d8d3a 160000
--- a/submodules/bzrtp
+++ b/submodules/bzrtp
@@ -1 +1 @@
-Subproject commit 41b2163c865fed835abc013ecaa25267fa2b1d63
+Subproject commit 94f0d8d3a267f899e9604604c74e876baba26306
diff --git a/submodules/cmake-builder b/submodules/cmake-builder
index 210a3c55c..941d793a2 160000
--- a/submodules/cmake-builder
+++ b/submodules/cmake-builder
@@ -1 +1 @@
-Subproject commit 210a3c55cd75c70e7f807cf08464493ea62e4458
+Subproject commit 941d793a2ca144e858a6d01e207992c384a4c7d3
diff --git a/submodules/externals/decaf b/submodules/externals/decaf
new file mode 160000
index 000000000..8caffb8b8
--- /dev/null
+++ b/submodules/externals/decaf
@@ -0,0 +1 @@
+Subproject commit 8caffb8b8e67d0d7a5a53e5997c6f3b8f8e85e5e
diff --git a/submodules/lime b/submodules/lime
new file mode 160000
index 000000000..e3746d4b8
--- /dev/null
+++ b/submodules/lime
@@ -0,0 +1 @@
+Subproject commit e3746d4b80d1a18e4b9f2e76890d6b4b2daad4e3
diff --git a/submodules/linphone b/submodules/linphone
index ebf1d1195..6edf43c37 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit ebf1d1195f22091371894b0c3e66063bce98bb96
+Subproject commit 6edf43c37dfc4e2c4d785fd4068748a158a4b264
diff --git a/submodules/mediastreamer2 b/submodules/mediastreamer2
index 1d6722bbb..18453dd71 160000
--- a/submodules/mediastreamer2
+++ b/submodules/mediastreamer2
@@ -1 +1 @@
-Subproject commit 1d6722bbb6b7d5609c148ab782869bb49b21f26b
+Subproject commit 18453dd7135b8893ce6dc89abf715e9455e52fc5