diff --git a/.drone.yml b/.drone.yml
index 7ab1777e0..a47a6885b 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -3,3 +3,4 @@ pipeline:
         image: nextcloudci/documentation:documentation-5
         commands:
             - make all
+branches: [ master, stable* ]
diff --git a/Makefile b/Makefile
index 66107bc6a..f98f77988 100644
--- a/Makefile
+++ b/Makefile
@@ -40,7 +40,7 @@ developer-manual-pdf:
 	@echo "Developer manual build finished; PDF is updated"
 
 api-docs: clean-api-docs
-	cd build && sh get-server-sources.sh stable13
+	cd build && sh get-server-sources.sh master
 	mkdir -p developer_manual/api/
 	cd build && composer install && composer update
 	cd build && php generateApiDoc.php
diff --git a/build/composer.json b/build/composer.json
index c051dae66..ad3512ffb 100644
--- a/build/composer.json
+++ b/build/composer.json
@@ -2,12 +2,16 @@
     "minimum-stability": "dev",
     "repositories": [
         {
-            "type": "vcs",
-            "url": "https://github.com/juliushaertl/reflection.git"
+            "type": "github",
+            "url": "https://github.com/juliushaertl/reflection",
+            "no-api": true
         }
     ],
     "require": {
         "juliushaertl/phpdoc-to-rst": "dev-php7.0",
         "phpdocumentor/reflection": "dev-php7.0"
+    },
+    "config": {
+        "github-protocols": ["https"]
     }
 }