diff --git a/.drone.yml b/.drone.yml
index 7b2d85c51..59487bf06 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -8,7 +8,7 @@ pipeline:
     image: nextcloudci/php7.0:php7.0-17
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       # Pre-setup steps
@@ -26,7 +26,7 @@ pipeline:
     image: nextcloudci/php7.0:php7.0-17
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       - wget https://raw.githubusercontent.com/nextcloud/server/master/build/signed-off-checker.php
@@ -50,7 +50,7 @@ pipeline:
     image: nextcloudci/php7.0:php7.0-17
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       - composer install
@@ -62,7 +62,7 @@ pipeline:
     image: nextcloudci/php7.1:php7.1-15
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       - composer install
@@ -74,7 +74,7 @@ pipeline:
     image: nextcloudci/php7.2:php7.2-9
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       - composer install
@@ -106,7 +106,7 @@ pipeline:
     image: nextcloudci/php7.0:php7.0-17
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       # Pre-setup steps
@@ -125,7 +125,7 @@ pipeline:
     image: nextcloudci/php7.1:php7.1-15
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       # Pre-setup steps
@@ -143,7 +143,7 @@ pipeline:
     image: nextcloudci/php7.2:php7.2-9
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       # Pre-setup steps
@@ -161,7 +161,7 @@ pipeline:
     image: nextcloudci/integration-php7.0:integration-php7.0-6
     environment:
       - APP_NAME=deck
-      - CORE_BRANCH=master
+      - CORE_BRANCH=stable13
       - DB=sqlite
     commands:
       # Pre-setup steps
diff --git a/.travis.yml b/.travis.yml
index f2375f490..5678bd10b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ php:
     - 7.1
     - 7.2
 env:
-    - CORE_BRANCH=master DB=mysql
+    - CORE_BRANCH=stable13 DB=mysql
 
 before_install:
     - wget https://phar.phpunit.de/phpunit-5.7.phar