diff --git a/bundle.sh b/bundle.sh
index d47224d..3a1843f 100755
--- a/bundle.sh
+++ b/bundle.sh
@@ -22,7 +22,13 @@ if [ "0" != "$status" ] ; then
   exit
 fi
 
-jarsigner -keystore keystore.p12 -storetype PKCS12 -storepass changeit "target/${PACKAGE_JAR}" mirth-client-plugins
+if [ -f keystore.p12 ] ; then
+  jarsigner -keystore keystore.p12 -storetype PKCS12 -storepass changeit "target/${PACKAGE_JAR}" mirth-client-plugins
+else
+  echo "*********"
+  echo "No keystore.p12 file exists for signing. The plug-in will not be signed."
+  echo "*********"
+fi
 
 # Use a separate directory for ZIP assembly
 rm -rf "${PACKAGE_NAME}"
@@ -40,3 +46,6 @@ zip -r9 "target/${PACKAGE_ZIP}" "${PACKAGE_NAME}"
 
 rm -rf "${PACKAGE_NAME}"
 
+echo "Build complete."
+echo "You can find your plug-in artifact in target/${PACKAGE_ZIP}"
+
diff --git a/libs/README.md b/libs/README.md
index 369e1cf..eec4b77 100644
--- a/libs/README.md
+++ b/libs/README.md
@@ -1,3 +1,16 @@
 # libs
 
 Libraries which have been manually installed instead of located via Maven.
+
+You can fetch the libraries necessary to build this plug-in like this:
+
+```
+# Extract the required dependencies
+$ tar xvzf oie_unix_4_5_2.tar.gz -C libs/ oie/client-lib/mirth-client.jar oie/server-lib/mirth-server.jar oie/cli-lib/mirth-client-core.jar
+
+# Move out of subdirectories
+$ mv libs/oie/*/*.jar libs/
+
+# Clean up
+$ rm -rf libs/oie
+```
diff --git a/pom.xml b/pom.xml
index 80c9c97..d1597ac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,53 +12,32 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.7</maven.compiler.source>
-    <maven.compiler.target>1.7</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
   </properties>
 
   <dependencies>
     <dependency>
       <groupId>com.mirth</groupId>
       <artifactId>server</artifactId>
-      <version>3.8.0</version>
+      <version>4.5.2</version>
       <scope>system</scope>
       <systemPath>${project.basedir}/libs/mirth-server.jar</systemPath>
     </dependency>
     <dependency>
       <groupId>com.mirth</groupId>
       <artifactId>client-core</artifactId>
-      <version>3.8.0</version>
+      <version>4.5.2</version>
       <scope>system</scope>
       <systemPath>${project.basedir}/libs/mirth-client-core.jar</systemPath>
     </dependency>
     <dependency>
       <groupId>com.mirth</groupId>
       <artifactId>client</artifactId>
-      <version>3.8.0</version>
+      <version>4.5.2</version>
       <scope>system</scope>
       <systemPath>${project.basedir}/libs/mirth-client.jar</systemPath>
     </dependency>
-    <dependency>
-      <groupId>org.jdesktop</groupId>
-      <artifactId>swingx-core</artifactId>
-      <version>1.6.2</version>
-      <scope>system</scope>
-      <systemPath>${project.basedir}/libs/swingx-core-1.6.2.jar</systemPath>
-    </dependency>
-    <dependency>
-      <groupId>net.miginfocom</groupId>
-      <artifactId>miglayout-swing</artifactId>
-      <version>4.2</version>
-      <scope>system</scope>
-      <systemPath>${project.basedir}/libs/miglayout-swing-4.2.jar</systemPath>
-    </dependency>
-    <dependency>
-      <groupId>net.miginfocom</groupId>
-      <artifactId>miglayout-core</artifactId>
-      <version>4.2</version>
-      <scope>system</scope>
-      <systemPath>${project.basedir}/libs/miglayout-core-4.2.jar</systemPath>
-    </dependency>
     <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
     <dependency>
       <groupId>org.slf4j</groupId>
@@ -69,13 +48,13 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.13.1</version>
+      <version>4.13.2</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.owasp</groupId>
       <artifactId>dependency-check-maven</artifactId>
-      <version>5.2.1</version>
+      <version>12.1.8</version>
       <type>maven-plugin</type>
     </dependency>
   </dependencies>