diff --git a/htrace-flume/pom.xml b/htrace-flume/pom.xml
index 283f62a..b4e19f6 100644
--- a/htrace-flume/pom.xml
+++ b/htrace-flume/pom.xml
@@ -70,13 +70,13 @@
     <!-- Module deps. -->
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <classifier>tests</classifier>
       <scope>test</scope>
diff --git a/htrace-hbase/pom.xml b/htrace-hbase/pom.xml
index 89db195..fc8b188 100644
--- a/htrace-hbase/pom.xml
+++ b/htrace-hbase/pom.xml
@@ -118,13 +118,13 @@
     <!-- Module deps. -->
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <classifier>tests</classifier>
       <scope>test</scope>
@@ -170,7 +170,7 @@
       <exclusions>
         <exclusion>
           <groupId>org.apache.htrace</groupId>
-          <artifactId>htrace-core</artifactId>
+          <artifactId>htrace-core4</artifactId>
         </exclusion>
       </exclusions> 
     </dependency>
diff --git a/htrace-htraced/pom.xml b/htrace-htraced/pom.xml
index 87ad4a5..685a7af 100644
--- a/htrace-htraced/pom.xml
+++ b/htrace-htraced/pom.xml
@@ -163,13 +163,13 @@
     <!-- Module deps. -->
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <classifier>tests</classifier>
       <scope>test</scope>
diff --git a/htrace-webapp/pom.xml b/htrace-webapp/pom.xml
index a291cd4..3fc3e5b 100644
--- a/htrace-webapp/pom.xml
+++ b/htrace-webapp/pom.xml
@@ -73,13 +73,13 @@
     <!-- Module deps. -->
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <classifier>tests</classifier>
       <scope>test</scope>
diff --git a/htrace-zipkin/pom.xml b/htrace-zipkin/pom.xml
index d1b0287..8e2c8a1 100644
--- a/htrace-zipkin/pom.xml
+++ b/htrace-zipkin/pom.xml
@@ -109,12 +109,12 @@
     <!-- Module deps. -->
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.htrace</groupId>
-      <artifactId>htrace-core</artifactId>
+      <artifactId>htrace-core4</artifactId>
       <version>${project.version}</version>
       <classifier>tests</classifier>
       <scope>test</scope>