diff --git a/Jenkinsfile_sdk b/Jenkinsfile_sdk
index 59355a7..0e93ffb 100644
--- a/Jenkinsfile_sdk
+++ b/Jenkinsfile_sdk
@@ -28,11 +28,7 @@ pipeline {
   options {
     timeout(time: 5, unit: 'HOURS')
     buildDiscarder(
-      logRotator(numToKeepStr: '5',
-                 daysToKeepStr: '5',
-                 artifactNumToKeepStr: '5',
-                 artifactDaysToKeepStr: '5'
-      )
+      logRotator(numToKeepStr: '5')
     )
   }
 
diff --git a/Jenkinsfile_update2head b/Jenkinsfile_update2head
index a957acc..f2bac35 100644
--- a/Jenkinsfile_update2head
+++ b/Jenkinsfile_update2head
@@ -19,11 +19,7 @@ pipeline {
   options {
     timeout(time: 1, unit: 'HOURS')
     buildDiscarder(
-      logRotator(numToKeepStr: '5',
-                 daysToKeepStr: '5',
-                 artifactNumToKeepStr: '5',
-                 artifactDaysToKeepStr: '5'
-      )
+      logRotator(numToKeepStr: '5')
     )
     disableConcurrentBuilds()
   }