diff --git a/htrace-hbase/pom.xml b/htrace-hbase/pom.xml
index e3427c5..fdce60f 100644
--- a/htrace-hbase/pom.xml
+++ b/htrace-hbase/pom.xml
@@ -130,6 +130,16 @@
       <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <classifier>tests</classifier>
+      <exclusions>
+        <exclusion>
+          <groupId>com.fasterxml.jackson.core</groupId>
+          <artifactId>jackson-core</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>com.fasterxml.jackson.core</groupId>
+          <artifactId>jackson-databind</artifactId>
+        </exclusion>
+      </exclusions>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/pom.xml b/pom.xml
index fe93777..44e850a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -122,27 +122,6 @@
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-enforcer-plugin</artifactId>
-          <version>${maven-enforcer-plugin.version}</version>
-          <executions>
-            <execution>
-              <id>enforce-maven</id>
-              <goals>
-                <goal>enforce</goal>
-              </goals>
-              <configuration>
-                <rules>
-                  <requireMavenVersion>
-                    <version>[3.0.4]</version>
-		    <message>Maven 3.0.4 is required, see HTRACE-236</message>
-		  </requireMavenVersion>
-		</rules>
-	      </configuration>
-            </execution>
-          </executions>
-        </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-jar-plugin</artifactId>
           <version>${maven-jar-plugin.version}</version>
           <executions>
@@ -241,10 +220,6 @@
     <plugins>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-enforcer-plugin</artifactId>
-      </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-gpg-plugin</artifactId>
       </plugin>
       <plugin>
@@ -301,7 +276,6 @@
   <properties>
     <targetJdk>1.7</targetJdk>
     <failIfNoTests>false</failIfNoTests>
-    <maven-enforcer-plugin.version>1.4.1</maven-enforcer-plugin.version>
     <maven-source-plugin.version>2.1.2</maven-source-plugin.version>
     <maven-javadoc-plugin.version>2.8.1</maven-javadoc-plugin.version>
     <maven-jar-plugin.version>2.4</maven-jar-plugin.version>