diff --git a/.jenkins/advise b/.jenkins/advise
index 0281af0..2bf9511 100644
--- a/.jenkins/advise
+++ b/.jenkins/advise
@@ -15,7 +15,7 @@ pipeline {
                     sh 'mkdir -p .metaeffekt-core'
                     dir ('.metaeffekt-core') {
                         withCredentials([usernamePassword(credentialsId: 'JenkinsGithubAccess', usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) {
-                            git url: 'https://github.com/org-metaeffekt/metaeffekt-core.git', branch: 'main', credentialsId: 'JenkinsGithubAccess'
+                            git url: 'https://github.com/org-metaeffekt/metaeffekt-core.git', branch: 'master', credentialsId: 'JenkinsGithubAccess'
                         }
                     }
                 }
diff --git a/.jenkins/extract b/.jenkins/extract
index 2d8e48d..5bce691 100644
--- a/.jenkins/extract
+++ b/.jenkins/extract
@@ -12,7 +12,7 @@ pipeline {
                     sh 'mkdir -p .metaeffekt-core'
                     dir ('.metaeffekt-core') {
                         withCredentials([usernamePassword(credentialsId: 'JenkinsGithubAccess', usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) {
-                            git url: 'https://github.com/org-metaeffekt/metaeffekt-core.git', branch: 'main', credentialsId: 'JenkinsGithubAccess'
+                            git url: 'https://github.com/org-metaeffekt/metaeffekt-core.git', branch: 'master', credentialsId: 'JenkinsGithubAccess'
                         }
                     }
                 }
diff --git a/.jenkins/upload-mirror b/.jenkins/upload-mirror
index 7fc002a..15ebe29 100644
--- a/.jenkins/upload-mirror
+++ b/.jenkins/upload-mirror
@@ -12,7 +12,7 @@ pipeline {
                     sh 'mkdir -p .metaeffekt-core'
                     dir ('.metaeffekt-core') {
                         withCredentials([usernamePassword(credentialsId: 'JenkinsGithubAccess', usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) {
-                            git url: 'https://github.com/org-metaeffekt/metaeffekt-core.git', branch: 'main', credentialsId: 'JenkinsGithubAccess'
+                            git url: 'https://github.com/org-metaeffekt/metaeffekt-core.git', branch: 'master', credentialsId: 'JenkinsGithubAccess'
                         }
                     }
                 }