diff --git a/.travis.yml b/.travis.yml
index a0873d6fc..5452eede6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,8 +23,7 @@ script:
 
 after_success:
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then ./gradlew jacocoTestReport coveralls; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then scripts/upload_deb.sh $BINTRAY_KEY ; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then scripts/upload_rpm.sh $BINTRAY_KEY ; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then scripts/upload_jar.sh $BINTRAY_KEY ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then scripts/upload_deb.sh $BINTRAY_KEY $PASSGPG ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then scripts/upload_rpm.sh $BINTRAY_KEY $PASSGPG ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then scripts/upload_jar.sh $BINTRAY_KEY $PASSGPG ; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then scripts/upload_dmg.sh $BINTRAY_KEY ; fi
-
diff --git a/README.md b/README.md
index e15c6789b..2d42e6b4e 100644
--- a/README.md
+++ b/README.md
@@ -32,9 +32,12 @@ Les instructions se trouvent sur [ce post](https://zestedesavoir.com/forums/suje
 
 #### Ubuntu, Debian, etc.
 
-1. Ouvrez un terminal et lancez la commande : `echo "deb https://dl.bintray.com/firm1/deb wheezy main" | sudo tee -a /etc/apt/sources.list.d/zestwriter.list`.
-2. mettez à jour vos dépôts via la commande : `sudo apt-get update`.
-3. installez Zest Writer via la commande : `sudo apt-get install zestwriter`.
+*Pour une mise à jour passez directement à l'étape 3*.
+
+1. Importez la clé GPG bintray de  via la commande : `sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 379CE192D401AB61`
+2. Ajouter une nouvelle source via la commande : `echo "deb https://dl.bintray.com/firm1/deb wheezy main" | sudo tee -a /etc/apt/sources.list.d/zestwriter.list`.
+3. mettez à jour vos dépôts via la commande : `sudo apt-get update`.
+4. installez Zest Writer via la commande : `sudo apt-get install zestwriter`.
 
 #### Fedora, ArchLinux, CentOs, etc.
 
diff --git a/scripts/upload_deb.sh b/scripts/upload_deb.sh
index 77d330dbe..03a95dbb9 100755
--- a/scripts/upload_deb.sh
+++ b/scripts/upload_deb.sh
@@ -13,3 +13,7 @@ VERSION=`cat gradle.properties | grep "version" | cut -d "=" -f2`
 echo "Upload du fichier $DEBFILE ..."
 
 curl -T "$DEBFILE" -u "firm1:$APIKEY" "https://api.bintray.com/content/firm1/deb/zest-writer/$VERSION/$DEBFILE;deb_distribution=wheezy;deb_component=main;deb_architecture=i386,amd64"
+
+echo "Sign"
+
+curl -u "firm1:$APIKEY" -X POST "https://api.bintray.com/calc_metadata/firm1/deb"
diff --git a/scripts/upload_jar.sh b/scripts/upload_jar.sh
index 9a9a0b1ba..71ebc296c 100755
--- a/scripts/upload_jar.sh
+++ b/scripts/upload_jar.sh
@@ -13,3 +13,7 @@ VERSION=`cat gradle.properties | grep "version" | cut -d "=" -f2`
 echo "Upload du fichier $DEBFILE ..."
 
 curl -T "$DEBFILE" -u "firm1:$APIKEY" "https://api.bintray.com/content/firm1/maven/zest-writer/$VERSION/$DEBFILE"
+
+echo "Sign"
+
+curl -u "firm1:$APIKEY" -X POST "https://api.bintray.com/calc_metadata/firm1/maven/build/libs"
diff --git a/scripts/upload_rpm.sh b/scripts/upload_rpm.sh
index 33664de4c..ca25bb99b 100755
--- a/scripts/upload_rpm.sh
+++ b/scripts/upload_rpm.sh
@@ -6,7 +6,6 @@ if [ -z "$1" ]
     exit 1
 fi
 
-
 RPMFILE=`ls build/distributions/*.rpm`
 APIKEY=$1
 VERSION=`cat gradle.properties | grep "version" | cut -d "=" -f2`
@@ -14,3 +13,7 @@ VERSION=`cat gradle.properties | grep "version" | cut -d "=" -f2`
 echo "Upload du fichier $DEBFILE ..."
 
 curl -T "$RPMFILE" -u "firm1:$APIKEY" "https://api.bintray.com/content/firm1/rpm/zest-writer/$VERSION/$RPMFILE"
+
+echo "Sign"
+
+curl -u "firm1:$APIKEY" -X POST "https://api.bintray.com/calc_metadata/firm1/rpm"