diff --git a/README.md b/README.md
index c700288..683e7f2 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Instant messaging server matrix network.
 
 Yunohost chatroom with matrix : [https://riot.im/app/#/room/#yunohost:matrix.org](https://riot.im/app/#/room/#yunohost:matrix.org)
 
-**Shipped version:** 1.11.1
+**Shipped version:** 1.12.3
 
 ## Configuration
 
diff --git a/check_process b/check_process
index 2c18177..03fa32f 100644
--- a/check_process
+++ b/check_process
@@ -13,7 +13,7 @@
         setup_public=1
         upgrade=1
         upgrade=1   from_commit=db374d2bff981d2660ebdac52ee77c684383c00d
-        upgrade=1   from_commit=0b8f2d4423bc48a1509dc0be4e231f02a0046eca
+        upgrade=1   from_commit=0571cc85334408a98f6766881b580a040fa6398a
         backup_restore=1
         multi_instance=1
         incorrect_path=0
@@ -24,5 +24,5 @@
 ;;; Upgrade options
 	; commit=db374d2bff981d2660ebdac52ee77c684383c00d
 		name=Fix postgresql helper from old_version_for_CI_2 branch
-    ; commit=0b8f2d4423bc48a1509dc0be4e231f02a0046eca
-        name=Migrate from self signed certificate to cert managed by Yunohost
+    ; commit=0571cc85334408a98f6766881b580a040fa6398a
+        name=Migrate from self signed certificate to cert managed by Yunohost from old_version_for_CI_3 branch
diff --git a/conf/armv7_stretch.src b/conf/armv7_stretch.src
index 6bcd6d3..e203c65 100644
--- a/conf/armv7_stretch.src
+++ b/conf/armv7_stretch.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/YunoHost-Apps/synapse_python_build/releases/download/v1.11.1/matrix-synapse_1.11.1-stretch-bin1_armv7l.tar.gz
-SOURCE_SUM=d793d49c561898330ce62bc7c1620b71467d611c375c41b697d2fd3064ddbee4
+SOURCE_URL=https://github.com/YunoHost-Apps/synapse_python_build/releases/download/v1.12.3/matrix-synapse_1.12.3-stretch-bin1_armv7l.tar.gz
+SOURCE_SUM=b18e314d312ccd69fa7aec295374515cd669d62041bf7ee1a304bc77105f9eda
 # (Optional) Program to check the integrity (sha256sum, md5sum...)
 # default: sha256
 SOURCE_SUM_PRG=sha256sum
diff --git a/manifest.json b/manifest.json
index 4be4080..6632ca6 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
 		"en": "Instant messaging server who use matrix",
 		"fr": "Un serveur de messagerie instantané basé sur matrix"
 	},
-	"version": "1.11.1~ynh1",
+	"version": "1.12.3~ynh1",
 	"url": "http://matrix.org",
 	"license": "Apache-2.0",
 	"maintainer": {
diff --git a/scripts/install b/scripts/install
index cae73e0..58285fe 100644
--- a/scripts/install
+++ b/scripts/install
@@ -182,6 +182,13 @@ mkdir -p $final_path
 if [ -n "$(uname -m | grep arm)" ]
 then
     ynh_setup_source --dest_dir=$final_path/ --source_id="armv7_$(lsb_release --codename --short)"
+
+    # Fix multi-instance support
+    for f in $(ls $final_path/bin); do
+        if ! [[ $f =~ "__" ]]; then
+            ynh_replace_special_string --match_string='#!/opt/yunohost/matrix-synapse' --replace_string='#!'$final_path --target_file=$final_path/bin/$f
+        fi
+    done
 else
     # Install virtualenv if it don't exist
     test -e $final_path/bin/python3 || python3 -m venv $final_path
diff --git a/scripts/upgrade b/scripts/upgrade
index 031402d..cf4ba14 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -142,7 +142,15 @@ then
 		ynh_secure_remove --file=$final_path/lib
 		ynh_secure_remove --file=$final_path/include
 		ynh_secure_remove --file=$final_path/share
+
 		ynh_setup_source --dest_dir=$final_path/ --source_id="armv7_$(lsb_release --codename --short)"
+
+		# Fix multi-instance support
+		for f in $(ls $final_path/bin); do
+			if ! [[ $f =~ "__" ]]; then
+				ynh_replace_special_string --match_string='#!/opt/yunohost/matrix-synapse' --replace_string='#!'$final_path --target_file=$final_path/bin/$f
+			fi
+		done
 	else
 		# Install virtualenv if it don't exist
 		test -e $final_path/bin/python3 || python3 -m venv $final_path
@@ -155,7 +163,7 @@ then
 		source $final_path/bin/activate
 		pip3 install --upgrade setuptools wheel
 		pip3 install --upgrade cffi ndg-httpsclient psycopg2 lxml jinja2
-		pip3 install --upgrade matrix-synapse==$upstream_version matrix-synapse-ldap3
+		pip3 install --upgrade 'Twisted>=20.3.0' matrix-synapse==$upstream_version matrix-synapse-ldap3
 
 		# This function was defined when we called "source $final_path/bin/activate". With this function we undo what "$final_path/bin/activate" does
 		deactivate