Use pluginManagement.
diff --git a/jena-db/pom.xml b/jena-db/pom.xml
index 2d35888..fcac5aa 100644
--- a/jena-db/pom.xml
+++ b/jena-db/pom.xml
@@ -72,46 +72,48 @@
   </dependencies>
 
   <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-jar-plugin</artifactId>
-        <configuration>
-          <archive>
-            <manifestEntries>
-              <Automatic-Module-Name>${automatic.module.name}</Automatic-Module-Name>
-            </manifestEntries>
-          </archive>
-        </configuration>
-        <executions>
-          <execution>
-            <goals>
-              <goal>test-jar</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-jar-plugin</artifactId>
+          <configuration>
+            <archive>
+              <manifestEntries>
+                <Automatic-Module-Name>${automatic.module.name}</Automatic-Module-Name>
+              </manifestEntries>
+            </archive>
+          </configuration>
+          <executions>
+            <execution>
+              <goals>
+                <goal>test-jar</goal>
+              </goals>
+            </execution>
+          </executions>
+        </plugin>
 
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-source-plugin</artifactId>
-        <executions>
-          <execution>
-            <id>attach-sources</id>
-            <!-- <phase>package</phase> package is the default -->
-            <goals>
-              <goal>jar-no-fork</goal>
-            </goals>
-          </execution>
-          <execution>
-            <id>attach-sources-test</id>
-            <goals>
-              <goal>test-jar-no-fork</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
-    </plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-source-plugin</artifactId>
+          <executions>
+            <execution>
+              <id>attach-sources</id>
+              <!-- <phase>package</phase> package is the default -->
+              <goals>
+                <goal>jar-no-fork</goal>
+              </goals>
+            </execution>
+            <execution>
+              <id>attach-sources-test</id>
+              <goals>
+                <goal>test-jar-no-fork</goal>
+              </goals>
+            </execution>
+          </executions>
+        </plugin>
+      </plugins>
+    </pluginManagement>
   </build>
   
 </project>