diff --git a/tools/java/common/pom.xml b/tools/java/common/pom.xml
index 57502f3b4..cce5a4e2a 100644
--- a/tools/java/common/pom.xml
+++ b/tools/java/common/pom.xml
@@ -19,7 +19,6 @@
     <testSourceDirectory>test</testSourceDirectory>
     <plugins>
       <plugin>
-        <version>2.3.2</version>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
@@ -32,7 +31,6 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>build-helper-maven-plugin</artifactId>
-        <version>1.5</version>
         <executions>
           <execution>
             <id>add-source</id>
diff --git a/tools/java/cpp-build/pom.xml b/tools/java/cpp-build/pom.xml
index fd8952a54..a60798c91 100644
--- a/tools/java/cpp-build/pom.xml
+++ b/tools/java/cpp-build/pom.xml
@@ -23,7 +23,6 @@
     <testSourceDirectory>test</testSourceDirectory>
     <plugins>
       <plugin>
-        <version>2.3.2</version>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
@@ -54,7 +53,6 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>build-helper-maven-plugin</artifactId>
-        <version>1.5</version>
         <executions>
           <execution>
             <id>add-source</id>
@@ -76,7 +74,6 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>exec-maven-plugin</artifactId>
-        <version>1.2</version>
         <executions>
           <execution>
             <phase>generate-sources</phase>
@@ -99,7 +96,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.2.1</version>
         <configuration>
           <descriptorRefs>
             <descriptorRef>jar-with-dependencies</descriptorRef>
diff --git a/tools/java/data/pom.xml b/tools/java/data/pom.xml
index c33215e11..626aea93f 100644
--- a/tools/java/data/pom.xml
+++ b/tools/java/data/pom.xml
@@ -47,7 +47,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>2.3.2</version>
         <configuration>
           <source>1.6</source>
           <target>1.6</target>
@@ -56,12 +55,10 @@
       <plugin>
         <groupId>net.kindleit</groupId>
         <artifactId>maven-gae-plugin</artifactId>
-        <version>0.9.1</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.2.1</version>
         <configuration>
           <descriptorRefs>
             <descriptorRef>jar-with-dependencies</descriptorRef>
@@ -86,7 +83,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-war-plugin</artifactId>
-        <version>2.1.1</version>
         <configuration>
           <warSourceDirectory>webapp</warSourceDirectory>
         </configuration>
diff --git a/tools/java/java-build/pom.xml b/tools/java/java-build/pom.xml
index 22a999fdd..100766b5e 100644
--- a/tools/java/java-build/pom.xml
+++ b/tools/java/java-build/pom.xml
@@ -41,7 +41,6 @@
     </testResources>
     <plugins>
       <plugin>
-        <version>2.3.2</version>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
@@ -52,7 +51,6 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>build-helper-maven-plugin</artifactId>
-        <version>1.5</version>
         <executions>
           <execution>
             <id>add-source</id>
@@ -79,7 +77,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.2.1</version>
         <configuration>
           <descriptorRefs>
             <descriptorRef>jar-with-dependencies</descriptorRef>