diff --git a/pom.xml b/pom.xml
index 55ad4cc..fce9795 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,7 +27,7 @@
     <dependency>
       <groupId>com.typesafe</groupId>
       <artifactId>config</artifactId>
-      <version>1.2.0</version>
+      <version>1.4.0</version>
     </dependency>
   </dependencies>
 
diff --git a/src/main/java/com/github/okapies/hoc2js/Hoc2Js.java b/src/main/java/com/github/okapies/hoc2js/Hoc2Js.java
index deb8b65..03cf0d2 100644
--- a/src/main/java/com/github/okapies/hoc2js/Hoc2Js.java
+++ b/src/main/java/com/github/okapies/hoc2js/Hoc2Js.java
@@ -30,6 +30,7 @@ public static void main(String[] args) {
 
         // resolve
         ConfigResolveOptions resolveOpts = loadResolveOpts(config);
+        obj = obj.resolve(resolveOpts.setAllowUnresolved(true));
         obj = obj.resolveWith(config, resolveOpts);
 
         // render