diff --git a/.drone.star b/.drone.star
index 609538ba89..a3bdc6b8e6 100644
--- a/.drone.star
+++ b/.drone.star
@@ -1,6 +1,6 @@
 def main(ctx):
   before = [
-    testing(ctx),
+    testing(ctx, 'master', '158bd976047ea8abd137e2c61905d9dd63dc977d', 'master', '934606e8e1701dbdf433c0c55a6272ec1cc0b9aa'),
   ]
 
   stages = [
@@ -22,7 +22,7 @@ def main(ctx):
 
   return before + stages + after
 
-def testing(ctx):
+def testing(ctx, coreBranch = 'master', coreCommit = '', phoenixBranch = 'master', phoenixCommit = ''):
   return {
     'kind': 'pipeline',
     'type': 'docker',
@@ -184,8 +184,11 @@ def testing(ctx):
         },
         'commands': [
           'git clone -b master --depth=1 https://github.com/owncloud/testing.git /srv/app/tmp/testing',
-          'git clone -b master --depth=1 https://github.com/owncloud/core.git /srv/app/testrunner',
+          'git clone -b %s --single-branch --no-tags https://github.com/owncloud/core.git /srv/app/testrunner' % (coreBranch),
           'cd /srv/app/testrunner',
+		] + ([
+          'git checkout %s' % (coreCommit)
+		] if coreCommit != '' else []) + [
           'make test-acceptance-api',
         ],
         'volumes': [{
@@ -210,9 +213,12 @@ def testing(ctx):
         },
         'commands': [
           'git clone -b master --depth=1 https://github.com/owncloud/testing.git /srv/app/testing',
-          'git clone -b master --depth=1 https://github.com/owncloud/phoenix.git /srv/app/phoenix',
+          'git clone -b %s --single-branch --no-tags https://github.com/owncloud/phoenix.git /srv/app/phoenix' % (phoenixBranch),
           'cp -r /srv/app/phoenix/tests/acceptance/filesForUpload/* /uploads',
           'cd /srv/app/phoenix',
+		] + ([
+          'git checkout %s' % (phoenixCommit)
+		] if phoenixCommit != '' else []) + [
           'yarn install-all',
           'yarn dist',
           'cp -r /drone/src/tests/config/drone/ocis-config.json /srv/app/phoenix/dist/config.json',