diff -Naurp parfait-0.5.3.orig/parfait-agent/pom.xml parfait-0.5.3/parfait-agent/pom.xml
--- parfait-0.5.3.orig/parfait-agent/pom.xml	2017-10-06 11:45:35.000000000 +1100
+++ parfait-0.5.3/parfait-agent/pom.xml	2017-10-06 13:27:24.176598870 +1100
@@ -147,19 +147,14 @@
       <version>${log4j.version}</version>
     </dependency>
     <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-core</artifactId>
-      <version>2.8.8</version>
+      <groupId>org.codehaus.jackson</groupId>
+      <artifactId>jackson-core-asl</artifactId>
+      <version>${jackson.version}</version>
     </dependency>
     <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-annotations</artifactId>
-      <version>2.8.8</version>
-    </dependency>
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-databind</artifactId>
-      <version>2.8.8</version>
+      <groupId>org.codehaus.jackson</groupId>
+      <artifactId>jackson-mapper-asl</artifactId>
+      <version>${jackson.version}</version>
     </dependency>
   </dependencies>
 </project>
diff -Naurp parfait-0.5.3.orig/parfait-agent/src/main/java/io/pcp/parfait/ParfaitAgent.java parfait-0.5.3/parfait-agent/src/main/java/io/pcp/parfait/ParfaitAgent.java
--- parfait-0.5.3.orig/parfait-agent/src/main/java/io/pcp/parfait/ParfaitAgent.java	2017-10-06 11:45:35.000000000 +1100
+++ parfait-0.5.3/parfait-agent/src/main/java/io/pcp/parfait/ParfaitAgent.java	2017-10-06 13:26:49.945893951 +1100
@@ -16,10 +16,10 @@
 
 package io.pcp.parfait;
 
-import com.fasterxml.jackson.core.JsonGenerationException;
-import com.fasterxml.jackson.databind.JsonMappingException;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
+import org.codehaus.jackson.JsonNode;
+import org.codehaus.jackson.JsonParseException;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.map.ObjectMapper;
 
 import io.pcp.parfait.MonitoringViewProperties;
 import io.pcp.parfait.AgentMonitoringView;
diff -Naurp parfait-0.5.3.orig/parfait-agent/src/main/java/io/pcp/parfait/Specification.java parfait-0.5.3/parfait-agent/src/main/java/io/pcp/parfait/Specification.java
--- parfait-0.5.3.orig/parfait-agent/src/main/java/io/pcp/parfait/Specification.java	2017-10-06 11:45:35.000000000 +1100
+++ parfait-0.5.3/parfait-agent/src/main/java/io/pcp/parfait/Specification.java	2017-10-06 13:26:49.946893942 +1100
@@ -16,9 +16,10 @@
 
 package io.pcp.parfait;
 
-import com.fasterxml.jackson.core.JsonParseException;
-import com.fasterxml.jackson.core.JsonParser;
-import com.fasterxml.jackson.databind.JsonNode;
+import org.codehaus.jackson.JsonNode;
+import org.codehaus.jackson.JsonParseException;
+import org.codehaus.jackson.JsonProcessingException;
+import org.codehaus.jackson.map.ObjectMapper;
 
 import systems.uom.quantity.Information;
 import tec.uom.se.unit.MetricPrefix;
diff -Naurp parfait-0.5.3.orig/pom.xml parfait-0.5.3/pom.xml
--- parfait-0.5.3.orig/pom.xml	2017-10-06 13:25:59.173331629 +1100
+++ parfait-0.5.3/pom.xml	2017-10-06 13:27:17.456656798 +1100
@@ -103,6 +103,7 @@
     <java.major.source.version>${jdk.version}</java.major.source.version>
     <java.major.target.version>${jdk.version}</java.major.target.version>
     <metrics3.version>1.0.2</metrics3.version>
+    <jackson.version>1.9.11</jackson.version>
     <unit.version>1.0</unit.version>
     <unit.se.version>1.0.4</unit.se.version>
     <unit.systems.version>0.6</unit.systems.version>
@@ -365,6 +366,16 @@
               <version>${metrics3.version}</version>
           </dependency>
           <dependency>
+              <groupId>org.codehaus.jackson</groupId>
+              <artifactId>jackson-core-asl</artifactId>
+	      <version>${jackson.version}</version>
+          </dependency>
+          <dependency>
+              <groupId>org.codehaus.jackson</groupId>
+              <artifactId>jackson-mapper-asl</artifactId>
+              <version>${jackson.version}</version>
+          </dependency>
+          <dependency>
               <groupId>org.hamcrest</groupId>
               <artifactId>hamcrest-all</artifactId>
               <version>1.3</version>
@@ -389,21 +400,6 @@
       <artifactId>log4j</artifactId>
       <optional>true</optional>
     </dependency>
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-core</artifactId>
-      <version>2.8.8</version>
-    </dependency>
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-annotations</artifactId>
-      <version>2.8.8</version>
-    </dependency>
-    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-databind</artifactId>
-      <version>2.8.8</version>
-    </dependency>
   </dependencies>
   <repositories>
     <repository>