Index: src/main/java/com/microsoft/hsg/Connection.java
===================================================================
--- src/main/java/com/microsoft/hsg/Connection.java	(revision 95197)
+++ src/main/java/com/microsoft/hsg/Connection.java	(working copy)
@@ -26,7 +26,8 @@
 import javax.xml.datatype.DatatypeFactory;
 
 import org.apache.commons.codec.binary.Base64;
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * The connection serves as the main pipe to HealthVault.  It
@@ -42,7 +43,7 @@
     private Transport transport;
     private Authenticator authenticator;
 
-    private static Logger logger = Logger.getLogger(Connection.class);
+    private static Logger logger = LoggerFactory.getLogger(Connection.class);
     /**
      * Gets the app id.
      * 
Index: src/main/java/com/microsoft/hsg/DefaultResponseStrategy.java
===================================================================
--- src/main/java/com/microsoft/hsg/DefaultResponseStrategy.java	(revision 95197)
+++ src/main/java/com/microsoft/hsg/DefaultResponseStrategy.java	(working copy)
@@ -22,7 +22,8 @@
 import javax.xml.xpath.XPath;
 import javax.xml.xpath.XPathFactory;
 
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.xml.sax.InputSource;
 
 /**
@@ -32,7 +33,7 @@
 public class DefaultResponseStrategy
 implements ResponseStrategy
 {
-	static Logger logger = Logger.getLogger(ResponseStrategy.class);
+	static Logger logger = LoggerFactory.getLogger(ResponseStrategy.class);
 
 
 	/**
Index: pom.xml
===================================================================
--- pom.xml	(revision 95197)
+++ pom.xml	(working copy)
@@ -50,9 +50,15 @@
         <version>1.3</version>
     </dependency>
     <dependency>
-        <groupId>log4j</groupId>
-        <artifactId>log4j</artifactId>
-        <version>1.2.14</version>
-    </dependency> 
+        <groupId>org.slf4j</groupId>
+        <artifactId>slf4j-api</artifactId>
+        <version>1.6.6</version>
+        <scope>compile</scope>
+    </dependency>
+    <dependency>
+        <groupId>org.slf4j</groupId>
+        <artifactId>slf4j-log4j12</artifactId>
+        <version>1.6.6</version>
+    </dependency>
   </dependencies>
 </project>