diff --git a/samples/client/petstore/akka-scala/pom.xml b/samples/client/petstore/akka-scala/pom.xml
index fa88207507e..7b1962284ac 100644
--- a/samples/client/petstore/akka-scala/pom.xml
+++ b/samples/client/petstore/akka-scala/pom.xml
@@ -211,13 +211,13 @@
     </dependencies>
     <properties>
         <scala-version>2.10.4</scala-version>
-        <json4s-jackson-version>3.2.11</json4s-jackson-version>
+        <json4s-jackson-version>3.6.8</json4s-jackson-version>
         <json4s-ext-version>3.2.11</json4s-ext-version>
         <spray-version>1.3.1</spray-version>
         <akka-version>2.3.9</akka-version>
         <joda-version>1.2</joda-version>
         <joda-time-version>2.2</joda-time-version>
-        <swagger-core-version>1.5.7</swagger-core-version>
+        <swagger-core-version>1.6.2</swagger-core-version>
         <maven-plugin.version>1.0.0</maven-plugin.version>
 
         <junit-version>4.8.1</junit-version>