diff --git a/report-core/lib/kudu/apache-log4j-extras-1.2.17.jar b/report-core/lib/kudu/apache-log4j-extras-1.2.17.jar deleted file mode 100644 index 9212a96b..00000000 Binary files a/report-core/lib/kudu/apache-log4j-extras-1.2.17.jar and /dev/null differ diff --git a/report-core/lib/kudu/log4j-1.2.16.jar b/report-core/lib/kudu/log4j-1.2.16.jar deleted file mode 100644 index 5429a903..00000000 Binary files a/report-core/lib/kudu/log4j-1.2.16.jar and /dev/null differ diff --git a/report-core/lib/kudu/logback-classic-1.2.3.jar b/report-core/lib/kudu/logback-classic-1.2.3.jar new file mode 100644 index 00000000..bed00c0a Binary files /dev/null and b/report-core/lib/kudu/logback-classic-1.2.3.jar differ diff --git a/report-core/lib/kudu/logback-core-1.2.3.jar b/report-core/lib/kudu/logback-core-1.2.3.jar new file mode 100644 index 00000000..487b3956 Binary files /dev/null and b/report-core/lib/kudu/logback-core-1.2.3.jar differ diff --git a/report-core/lib/kudu/slf4j-log4j12-1.7.30.jar b/report-core/lib/kudu/slf4j-log4j12-1.7.30.jar deleted file mode 100644 index c6bc8b2e..00000000 Binary files a/report-core/lib/kudu/slf4j-log4j12-1.7.30.jar and /dev/null differ diff --git a/report-core/lib/kudu/slf4j-simple-1.7.30.jar b/report-core/lib/kudu/slf4j-simple-1.7.30.jar deleted file mode 100644 index 6debaa9d..00000000 Binary files a/report-core/lib/kudu/slf4j-simple-1.7.30.jar and /dev/null differ