diff --git a/pom.xml b/pom.xml
index af3e9be989..825fe36be3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -87,6 +87,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.20</version>
 				<configuration>
 					<enableAssertions>true</enableAssertions>
 					<argLine>-Xmx512m</argLine>
@@ -102,6 +103,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-javadoc-plugin</artifactId>
+				<version>2.10.4</version>
 				<executions>
 					<execution>
 						<id>attach-javadocs</id>
@@ -114,6 +116,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-checkstyle-plugin</artifactId>
+				<version>2.17</version>
 				<executions>
 					<execution>
 						<id>verify-style</id>