diff --git a/backend-service/build.gradle b/backend-service/build.gradle
index 57f8d5934a..a87f4f6be6 100644
--- a/backend-service/build.gradle
+++ b/backend-service/build.gradle
@@ -50,6 +50,15 @@ dependencies{
     provided project(":metadata-etl")
 }
 
+configurations {
+    all*.exclude group: 'org.slf4j', module: 'slf4j-log4j12'
+    all*.exclude group: 'log4j', module: 'log4j'
+}
+
+clean {
+    delete "lib/"
+}
+
 task copyPlayLibs(type: Copy){
     from configurations.provided
     into 'lib'
diff --git a/metadata-etl/src/main/resources/log4j.properties b/metadata-etl/src/main/resources/log4j.properties
deleted file mode 100644
index 3b0b9122e5..0000000000
--- a/metadata-etl/src/main/resources/log4j.properties
+++ /dev/null
@@ -1,34 +0,0 @@
-#
-# Copyright 2015 LinkedIn Corp. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#
-
-# Root logger option
-log4j.rootLogger=INFO, file
-
-# Redirect log messages to console
-log4j.appender.stdout=org.apache.log4j.ConsoleAppender
-log4j.appender.stdout.Target=System.out
-log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
-log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
-
-# Redirect log messages to a log file, support file rolling.
-log4j.appender.file=org.apache.log4j.RollingFileAppender
-log4j.appender.file.File=/var/tmp/wherehows/wherehows.log
-log4j.appender.file.MaxFileSize=5MB
-log4j.appender.file.MaxBackupIndex=10
-log4j.appender.file.layout=org.apache.log4j.PatternLayout
-log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
-
-
-log4j.logger.com.jayway.jsonpath=WARN
-log4j.logger.org.apache=WARN
\ No newline at end of file
diff --git a/metadata-etl/src/main/resources/logback.xml b/metadata-etl/src/main/resources/logback.xml
new file mode 100644
index 0000000000..d9850517e6
--- /dev/null
+++ b/metadata-etl/src/main/resources/logback.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+  Copyright 2015 LinkedIn Corp. All rights reserved.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+-->
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <Target>System.out</Target>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n</pattern>
+        </encoder>
+    </appender>
+    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <!--See also http://logback.qos.ch/manual/appenders.html#RollingFileAppender-->
+        <File>/var/tmp/wherehows/wherehows.log</File>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n</pattern>
+        </encoder>
+        <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
+            <maxIndex>10</maxIndex>
+            <FileNamePattern>/var/tmp/wherehows/wherehows.log.%i</FileNamePattern>
+        </rollingPolicy>
+        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+            <MaxFileSize>5MB</MaxFileSize>
+        </triggeringPolicy>
+    </appender>
+
+    <logger name="org.apache" level="WARN"/>
+    <logger name="com.jayway.jsonpath" level="WARN"/>
+
+    <root level="INFO">
+        <appender-ref ref="FILE"/>
+    </root>
+</configuration>
diff --git a/web/build.gradle b/web/build.gradle
index 28bab9b3d3..2f6a81c2fb 100644
--- a/web/build.gradle
+++ b/web/build.gradle
@@ -60,6 +60,15 @@ dependencies{
     // playManaged files('target/scala-2.9.1/classes_managed')
 }
 
+configurations {
+    all*.exclude group: 'org.slf4j', module: 'slf4j-log4j12'
+    all*.exclude group: 'log4j', module: 'log4j'
+}
+
+clean {
+    delete "lib/"
+}
+
 task copyPlayLibs(type: Copy){
     from configurations.provided
     into 'lib'