diff --git a/.gitignore b/.gitignore
index 7766f358..1abcdecb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ postgres/data/*
 
 nextcloud/html/*
 !nextcloud/html/.keep
+nextcloud/conf/*
 
 web/logs/*
 web/upload/*
diff --git a/docker-compose.override.yml b/docker-compose.override.yml
index 066cff90..02fa96a4 100644
--- a/docker-compose.override.yml
+++ b/docker-compose.override.yml
@@ -47,8 +47,6 @@ services:
         condition: service_healthy
     build:
       context: ./nextcloud
-    env_file:
-      - ${ENV_FILE_OVERRIDE-web.env}  # to get shared NEXTCLOUD_SESSIONTOKEN_KEY
     environment:
       - POSTGRES_DB=nextcloud
       - POSTGRES_USER=postgres
@@ -62,6 +60,7 @@ services:
       - NEXTCLOUD_ALLOW_ORIGIN=http://localhost:5000  # allow local browser to pick nextcloud files
     volumes:
       - ./nextcloud/html:/var/www/html
+      - ./nextcloud/conf:/var/www/conf  # to share Nextcloud Sessiontoken generated key file
     ports:
       - 80:80
     healthcheck:
@@ -75,11 +74,12 @@ services:
       nextcloud:
         condition: service_healthy
     env_file:
-      - ${ENV_FILE_OVERRIDE-web.env}  # to get shared NC_LOGIN_API_KEY and NEXTCLOUD_SESSIONTOKEN_KEY
+      - ${ENV_FILE_OVERRIDE-web.env}  # to get shared NC_LOGIN_API_KEY
     environment:
       - NC_HOST=http://nextcloud  # nextcloud service in docker network
     volumes:
       - ./tokenmock:/var/www/html
+      - ./nextcloud/conf:/var/www/conf  # to get shared Nextcloud Sessiontoken generated key
     ports:
       - 9000:80
 
diff --git a/documentation/developers/meetingFiles.md b/documentation/developers/meetingFiles.md
index 22cafe94..69204d7f 100644
--- a/documentation/developers/meetingFiles.md
+++ b/documentation/developers/meetingFiles.md
@@ -41,10 +41,11 @@ Pour vérifier que la communication entre chacun des conteneurs fonctionne corre
 
 #### Vérifier que Nextcloud renvoie des autorisations
 
+- Le plugin [Nextcloud Sessiontoken](https://gitlab.octopuce.fr/octopuce-public/nextcloud-sessiontoken) génère une clé au lancement du service Nextcloud trouvable dans `/nextcloud/conf/key.txt`
 - se connecter sur le service `tokenmock` avec `docker exec -it id /bin/bash`
-- faire un appel vers le service Nextcloud en passant par le session token et en indiquant l'utilisateur concerné (comme le `bbb-visio-user` par exemple) :
+- faire un appel vers le service Nextcloud en passant par le session token et en indiquant la clé générée et l'utilisateur concerné (comme le `bbb-visio-user` par exemple) :
 ```
-curl -X POST $NC_HOST/apps/sessiontoken/token -d "apikey=$NEXTCLOUD_SESSIONTOKEN_KEY&user=relevant-b3desk-username&name=device_name"
+curl -X POST $NC_HOST/apps/sessiontoken/token -d "apikey=[nextcloud-sessiontoken-generated-key]&user=relevant-b3desk-username&name=device_name"
 ```
 - le conteneur Nextcloud devrait répondre :
 ```
diff --git a/nextcloud/apache2-sessiontoken b/nextcloud/apache2-sessiontoken
index 64e0f24c..3ea8de00 100755
--- a/nextcloud/apache2-sessiontoken
+++ b/nextcloud/apache2-sessiontoken
@@ -2,15 +2,14 @@
 
 # deploy the sessiontoken app:
 git clone https://gitlab.octopuce.fr/octopuce-public/nextcloud-sessiontoken.git /var/www/html/apps/sessiontoken
-cd /var/www/html/apps/sessiontoken
-git config --global --add safe.directory '*'
-git checkout 7cf4ff5eea1f16820aa20c3995c3a663e74a9eb7
-cd /var/www/html
 chown -R www-data: /var/www/html/apps/sessiontoken
 #
 ## install the sessiontoken key in /var/www/html/config/config.php
-HASH=$(php /var/www/html/apps/sessiontoken/hash-apikey.php "$NEXTCLOUD_SESSIONTOKEN_KEY")
-sed -i "/'datadirectory'/a 'sessiontoken_apikey_hash' => '$HASH'," /var/www/html/config/config.php
+mkdir -p /var/www/conf
+php /var/www/html/apps/sessiontoken/hash-apikey.php | tee > /var/www/conf/key.txt
+HASH=$(sed -e '8!d' -e 's/^[ ]*//' -e 's/,$//' /var/www/conf/key.txt)
+sed -i "/'datadirectory'/a $HASH," /var/www/html/config/config.php
+sed -i -e '5!d' -e 's/[\t ]//g' /var/www/conf/key.txt
 #
 ## enable the sessiontoken app
 su -p "www-data" -s /bin/sh -c "php occ app:enable sessiontoken"
diff --git a/nextcloud/nextcloudcheck.sh b/nextcloud/nextcloudcheck.sh
index 83d769bd..0363e34f 100644
--- a/nextcloud/nextcloudcheck.sh
+++ b/nextcloud/nextcloudcheck.sh
@@ -1,6 +1,6 @@
 
 #!/bin/bash
-
+NEXTCLOUD_SESSIONTOKEN_KEY=$(cat /var/www/conf/key.txt)
 status_code=$(curl -X POST localhost/apps/sessiontoken/token --silent --output /dev/null -d "apikey=$NEXTCLOUD_SESSIONTOKEN_KEY&user=bbb-visio-user&name=app" --write-out %{http_code})
 
 if [[ "$status_code" -ne 200 ]] ; then
diff --git a/tokenmock/config.php b/tokenmock/config.php
index 4fc83adc..54468e31 100644
--- a/tokenmock/config.php
+++ b/tokenmock/config.php
@@ -1,7 +1,8 @@
 <?php
+$NEXTCLOUD_SESSIONTOKEN_KEY = trim(file_get_contents('../conf/key.txt'), "\r\n");
 return array(
-    'API_KEY' => $_ENV['NC_LOGIN_API_KEY'],
+    'NC_LOGIN_API_KEY' => $_ENV['NC_LOGIN_API_KEY'],
     'NC_HOST' => $_ENV['NC_HOST'],
-    'NEXTCLOUD_SESSIONTOKEN_KEY' => $_ENV['NEXTCLOUD_SESSIONTOKEN_KEY'],
+    'NEXTCLOUD_SESSIONTOKEN_KEY' => $NEXTCLOUD_SESSIONTOKEN_KEY,
 );
 ?>
diff --git a/tokenmock/index.php b/tokenmock/index.php
index 20ed8710..d9c460b2 100755
--- a/tokenmock/index.php
+++ b/tokenmock/index.php
@@ -11,7 +11,7 @@
 
 $config=include('./config.php');
 
-$API_KEY=$config['API_KEY'];
+$NC_LOGIN_API_KEY=$config['NC_LOGIN_API_KEY'];
 $NEXTCLOUD_SESSIONTOKEN_ENDPOINT=$config['NC_HOST'].'/apps/sessiontoken/token';
 $NEXTCLOUD_SESSIONTOKEN_KEY=$config['NEXTCLOUD_SESSIONTOKEN_KEY'];
 
@@ -19,7 +19,7 @@
 
 $LOGIN=$data['username'];
 
-if (isset($_SERVER["HTTP_X_API_KEY"]) && $_SERVER["HTTP_X_API_KEY"]==$API_KEY) {
+if (isset($_SERVER["HTTP_X_API_KEY"]) && $_SERVER["HTTP_X_API_KEY"]==$NC_LOGIN_API_KEY) {
     header("Content-Type: application/json");
 
 
diff --git a/web.env.example b/web.env.example
index 18e510e6..3dd75a7d 100644
--- a/web.env.example
+++ b/web.env.example
@@ -79,7 +79,6 @@ UPLOAD_DIR=/tmp/b3desk/  # used by dropzone to upload files
 FORCE_HTTPS_ON_EXTERNAL_URLS=off
 NC_LOGIN_API_URL=http://tokenmock:80/index.php  # nextcloud token provider endpoint (currently pointing toward related service in docker network)
 NC_LOGIN_API_KEY=MY-TOTALLY-COOL-API-KEY  # SHARED between web and tokenmock services as nextcloud credentials
-NEXTCLOUD_SESSIONTOKEN_KEY=megatokengeneratedatleast64long  # SHARED between nextcloud (sessiontoken app) and tokenmock services
 REDIS_URL=broker:6379  # SHARED between worker and web services, used for background file management (currently pointing toward related service in docker network)
 
 # Feature flags