diff --git a/.gitignore b/.gitignore
index ea8c4bf..5dc5758 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,6 @@
 /target
+.idea/
+*.iml
+*.iws
+*.ipr
+
diff --git a/Capstanfile b/Capstanfile
index a2a263f..f02c60b 100644
--- a/Capstanfile
+++ b/Capstanfile
@@ -7,7 +7,7 @@
 # Name of the base image.  Capstan will download this automatically from
 # Cloudius S3 repository.
 #
-base: cloudius/osv-openjdk
+base: cloudius/osv-openjdk8
 
 #
 # The command line passed to OSv to start up the application.
diff --git a/pom.xml b/pom.xml
index 984055f..35887c1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,6 +17,15 @@
   </dependencies>
   <build>
     <plugins>
+    <plugin>
+      <groupId>org.apache.maven.plugins</groupId>
+      <artifactId>maven-compiler-plugin</artifactId>
+      <version>3.5.1</version>
+      <configuration>
+        <source>1.8</source>
+        <target>1.8</target>
+      </configuration>
+    </plugin>
       <plugin>
         <artifactId>maven-jar-plugin</artifactId>
         <version>2.4</version>