diff --git a/pom.xml b/pom.xml
index 646d405..09e8e6c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -97,7 +97,7 @@
     <!--
      | The spec version of the public Guice API
     -->
-    <guice.api.version>1.3</guice.api.version>
+    <guice.api.version>1.4</guice.api.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <!--
      | Use "-Dguice.with.jarjar=false" to build without jarjar
@@ -107,6 +107,7 @@
      | Use "-Dguice.with.no_aop=false" to skip the no-AOP variant
     -->
     <guice.with.no_aop>true</guice.with.no_aop>
+    <gpg.skip>true</gpg.skip>
   </properties>
 
   <dependencies>
@@ -339,14 +340,27 @@
         <plugin>
           <artifactId>maven-javadoc-plugin</artifactId>
           <version>2.7</version>
+          <executions>
+            <execution>
+              <phase>package</phase>
+              <goals>
+                <goal>jar</goal>
+              </goals>
+            </execution>
+          </executions>
         </plugin>
         <plugin>
           <artifactId>maven-source-plugin</artifactId>
           <version>2.1.2</version>
-        </plugin>
-        <plugin>
-          <artifactId>maven-gpg-plugin</artifactId>
-          <version>1.1</version>
+          <executions>
+            <execution>
+              <phase>package</phase>
+              <goals>
+                <goal>jar</goal>
+                <goal>test-jar</goal>
+              </goals>
+            </execution>
+          </executions>
         </plugin>
         <plugin>
           <artifactId>maven-release-plugin</artifactId>
@@ -361,6 +375,22 @@
         </plugin>
       </plugins>
     </pluginManagement>
+    <plugins>
+      <!--
+       | Sign artifacts.
+      -->
+      <plugin>
+        <artifactId>maven-gpg-plugin</artifactId>
+        <version>1.4</version>
+        <executions>
+          <execution>
+            <id>sign-artifacts</id>
+            <phase>verify</phase>
+            <goals><goal>sign</goal></goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
   </build>
 
   <profiles>